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  • Nearest Star System | SPACELIA

    Certainly, here is a list of the 100 nearest star systems to our solar system, along with brief introduction of each system. Nearest Star Systems Certainly, here is a list of the 100 nearest star systems to our solar system, along with brief explanations for each: Alpha Centauri A : The primary star in the Alpha Centauri system, part of the closest star system to our Sun. Alpha Centauri B : The second star in the Alpha Centauri system, which includes a third star, Proxima Centauri. Proxima Centauri : The closest known star to our solar system, located in the Alpha Centauri system. Barnard's Star : The fourth-closest known individual star to our Sun, located in the Ophiuchus constellation. Luhman 16 : A binary brown dwarf system, about 6.59 light-years away from us. Wolf 359 : A red dwarf star, one of the nearest to Earth, approximately 7.8 light-years away. Lalande 21185 : A red dwarf star situated around 8.29 light-years from our Sun. Sirius : The brightest star in Earth's night sky, located about 8.6 light-years away. Ross 154 : A red dwarf star, roughly 9.69 light-years from our Sun. Ross 248 : Another red dwarf star, approximately 10.32 light-years away. Epsilon Eridani : A young star known to have at least one exoplanet, about 10.49 light-years away. 61 Cygni A : The primary star in the 61 Cygni binary system, approximately 11.41 light-years away. 61 Cygni B : The companion star in the 61 Cygni binary system. Struve 2398 A : A red dwarf star in a binary system, about 11.49 light-years away. Struve 2398 B : The companion star in the Struve 2398 binary system. Groombridge 34 A : A binary star system, around 11.62 light-years from our Sun. Groombridge 34 B : The companion star in the Groombridge 34 binary system. Procyon : Also known as Alpha Canis Minoris, it's about 11.46 light-years away and is one of the brightest stars in the night sky. Tau Ceti : Located about 11.89 light-years away, this star is often studied in the search for habitable planets. Epsilon Indi : About 11.83 light-years away, it's one of the closest solitary brown dwarfs to our Sun. Ross 128 : Approximately 11.13 light-years away, this red dwarf star is of interest for exoplanet searches. EZ Aquarii A : Part of a binary star system, approximately 11.32 light-years away . EZ Aquarii B : The companion star in the EZ Aquarii binary system. Luyten's Star : Located about 12.36 light-years away, it's a red dwarf star often used in astronomical studies. Kruger 60 A : A red dwarf star, approximately 13.1 light-years away. Kruger 60 B : The companion star in the Kruger 60 binary system. Gliese 1061 : A red dwarf star situated around 13.06 light-years away. Gliese 1 : Located about 15.76 light-years away, it's part of the Ursa Major constellation. Lacaille 8760 : Also known as AX Microscopii, it's about 12.88 light-years away. Wolf 1061 : A red dwarf star, approximately 14.05 light-years from our Sun. DX Cancri : Located about 14.82 light-years away, it's part of the Cancer constellation. Sirius B : The companion white dwarf star to Sirius A. 40 Eridani A : Also known as Keid, it's about 16.47 light-years away. 40 Eridani B : Part of the 40 Eridani binary system. 40 Eridani C : Also known as Proxima D, it's part of the 40 Eridani system. Proxima Eridani : Located around 16.44 light-years away. GJ 1066 : A red dwarf star situated around 16.87 light-years from our Sun. GJ 1214 : Known for its super-Earth exoplanet, located about 42 light-years away. GJ 1245 A : Part of a binary star system, about 17.16 light-years away. GJ 1245 B : The companion star in the GJ 1245 binary system. GJ 2005 : A red dwarf star approximately 17.52 light-years away. Kapteyn's Star : Located around 12.76 light-years away, it's one of the nearest stars to the solar system. AX Microscopii A : Part of the Lacaille 8760 binary system. AX Microscopii B : The companion star in the Lacaille 8760 binary system. Delta Eridani : Also known as DY Eridani, it's about 26.26 light-years away. GJ 402 : Located approximately 19.11 light-years away. Ross 614 : Also known as UV Ceti, it's a red dwarf star around 21.09 light-years away. Ross 780 : A red dwarf star located about 20.84 light-years away. Ross 619 : Also known as V577 Monocerotis, it's about 20.94 light-years away. Gliese 412 : A red dwarf star situated around 21.01 light-years away. AC+79°3888 : Located about 21.09 light-years away. Gliese 687 : A red dwarf star, about 21.03 light-years from our Sun. Lalande 25372 : Located approximately 21.16 light-years away. Ross 780 : Part of the Ross 780 binary system. Ross 619 : Also known as V577 Monocerotis, part of the Ross 619 binary system. Gliese 412 : Part of the Gliese 412 binary system. AC+79°3888 : Part of the AC+79°3888 binary system. Gliese 687 : Part of the Gliese 687 binary system. Lalande 25372 : Part of the Lalande 25372 binary system. Gliese 54 : A red dwarf star, approximately 21.53 light-years away. Gliese 22 : Located about 22.35 light-years away. Gliese 338 : Part of the Gliese 338 binary system, around 22.44 light-years away. Gliese 54 : Part of the Gliese 54 binary system. Gliese 22 : Part of the Gliese 22 binary system. Gliese 338 : Part of the Gliese 338 binary system. Gliese 830 : Located about 22.83 light-years away. Gliese 860 : Also known as Ross 842, it's approximately 22.36 light-years away. Gliese 880 : Located about 22.92 light-years away. Gliese 908 : Also known as V840 Cygni, situated around 22.29 light-years away. Gliese 752 : Also known as BD+02°3375, it's located approximately 22.57 light-years away. Gliese 117 : Also known as BD+43°4305, it's about 23.31 light-years away. Gliese 35 : Also known as BD-05°1844, it's around 23.51 light-years away. Gliese 559 : Also known as BD+47°3379, located approximately 23.61 light-years away. Gliese 369 : Also known as BD+75°325, it's about 23.69 light-years away. Gliese 372 : Also known as BD+35°3291, located approximately 23.70 light-years away. Gliese 109 : Also known as BD+63°1985, it's about 23.84 light-years away. Gliese 349 : Also known as BD+58°419, located approximately 23.88 light-years away. Gliese 12 : Also known as CD-44°163, situated around 24.33 light-years away. Gliese 22 : Also known as BD+16°1608, it's approximately 24.55 light-years away. Gliese 700 : Also known as CD-53°163, located about 24.70 light-years away. Gliese 735 : Also known as BD+36°1987, situated around 24.71 light-years away. Gliese 35 : Also known as BD+05°1780, it's approximately 24.74 light-years away. Gliese 799 : Also known as BD+28°3133, located about 24.84 light-years away. Gliese 350 : Also known as BD+27°2591, situated around 24.91 light-years away. Gliese 389 : Also known as BD+22°1950, it's approximately 25.00 light-years away. Gliese 424 : Also known as CD-38°161, located about 25.09 light-years away. Gliese 427 : Also known as BD+36°2107, situated around 25.16 light-years away. Gliese 12 : Also known as CD-44°161, part of the Gliese 12 binary system. Gliese 22: Also known as BD+16°1608, part of the Gliese 22 binary system. Gliese 700 : Also known as CD-53°163, part of the Gliese 700 binary system. Gliese 735 : Also known as BD+36°1987, part of the Gliese 735 binary system. Gliese 35 : Also known as BD+05°1780, part of the Gliese 35 binary system. Gliese 799 : Also known as BD+28°3133, part of the Gliese 799 binary system. Gliese 350 : Also known as BD+27°2591, part of the Gliese 350 binary system. Gliese 389 : Also known as BD+22°1950, part of the Gliese 389 binary system. Gliese 424 : Also known as CD-38°161, part of the Gliese 424 binary system. Gliese 427 : Also known as BD+36°2107, part of the Gliese 427 binary system. Gliese 86 : Also known as BD+48°2045, it's approximately 25.30 light-years away. Gliese 545 : Also known as BD+04°2466, located about 25.38 light-years away. Other Articles..... STAR VFTS102 KEPLER-452b KEPLER-186f Proxima Centauri b TRAPPIST-1

  • Solar System | SPACELIA

    Solar System, The Multi Planetary system in a Milky Way Galaxy, Where our beautiful home Earth exists and other 6 planets as well as, Solar System has a core star, and it operates with the energy of this Star called the Sun. Solar System Interesting facts and information about object of our solar system. SUN Star at the Center: The Sun is a star located at the center of our solar system. It is an enormous, nearly spherical ball of hot plasma that generates energy through nuclear fusion. Source of Light and Heat: The Sun radiates immense amounts of light and heat, which provide energy for life on Earth and drive weather patterns, ocean currents, and the climate system. Composition and Size: The Sun is primarily composed of hydrogen (about 74% of its mass) and helium (about 24%). It has a diameter of about 1.4 million kilometers (870,000 miles), making it approximately 109 times the diameter of Earth. MERCURY Closest Planet to the Sun: Mercury is the closest planet to the Sun in our solar system. It orbits the Sun at an average distance of about 57.9 million kilometers (35.98 million miles). Small and Rocky: Mercury is the smallest planet in our solar system, with a diameter of about 4,879 kilometers (3,032 miles). It is a rocky planet, similar to Earth's Moon, with a surface covered in craters, cliffs, and plains. Extreme Temperatures: Due to its proximity to the Sun, Mercury experiences extreme temperature variations. The side facing the Sun can reach scorching temperatures of around 430 degrees Celsius (800 degrees Fahrenheit), while the side facing away from the Sun can plummet to freezing temperatures of about -180 degrees Celsius (-290 degrees Fahrenheit). VENUS Earth's "Twin" Planet: Venus is often referred to as Earth's "twin" because it is similar in size and composition. It is the second planet from the Sun and is the closest planet to Earth. Harsh Atmosphere: Venus has a thick and toxic atmosphere composed mainly of carbon dioxide with clouds of sulfuric acid. This dense atmosphere creates a runaway greenhouse effect, making Venus the hottest planet in our solar system, with surface temperatures averaging around 462 degrees Celsius (864 degrees Fahrenheit). Shrouded in Clouds: The atmosphere of Venus is perpetually covered in thick clouds that create a highly reflective layer, making it the brightest planet visible from Earth. These clouds consist mostly of sulfuric acid and contribute to the intense greenhouse effect and the planet's high surface temperatures. EARTH Third Planet from the Sun: Earth is the third planet in our solar system, located between Venus and Mars. Habitable Planet: Earth is the only known planet to support life. It has a diverse biosphere with a wide range of ecosystems and millions of species, including humans. Blue Planet: Earth is often called the "Blue Planet" because about 71% of its surface is covered by oceans, which contain most of the planet's water. Oxygen and Atmosphere: Earth's atmosphere consists mainly of nitrogen (78%) and oxygen (21%). The presence of oxygen enables the survival of aerobic organisms, including humans. MOON Earth's Natural Satellite: The Moon is Earth's only natural satellite. It orbits around our planet at an average distance of about 384,400 kilometers (238,900 miles). Lunar Phases: The Moon goes through different phases as seen from Earth, caused by the changing positions of the Moon, Earth, and Sun. These phases include New Moon, First Quarter, Full Moon, and Last Quarter. Lunar Surface: The Moon's surface is covered with craters, mountains, and plains. The darker areas are called maria, which are large, flat plains formed by ancient volcanic activity. The lighter areas are highlands, composed of mountains and impact craters. Synchronous Rotation: The Moon is tidally locked with Earth, meaning it always shows the same face to us. This phenomenon is known as "synchronous rotation" and is a result of the gravitational interaction between Earth and the Moon. MARS The Red Planet: Mars is often called the "Red Planet" due to its reddish appearance, caused by iron oxide (or rust) on its surface. It is the fourth planet from the Sun in our solar system. Similar to Earth: Mars is a terrestrial planet with similarities to Earth. It has a thin atmosphere primarily composed of carbon dioxide, polar ice caps, seasons, and a day length similar to Earth's. Exploration and Potential for Life: Mars has been extensively explored by robotic missions. Scientists are interested in Mars because it might have had conditions suitable for life in the past, and future missions aim to search for signs of past or present life on the planet. CERES Largest Asteroid: Ceres is the largest object in the asteroid belt between Mars and Jupiter. It is classified as a dwarf planet and is the only one located in the inner solar system. Composition and Size: Ceres is composed mostly of rock and ice, and it has a diameter of about 940 kilometers (590 miles). It accounts for about one-third of the total mass of the asteroid belt. Water Ice and Possible Subsurface Ocean: Observations from spacecraft have revealed that Ceres has significant amounts of water ice on its surface, particularly in its polar regions. There is also evidence to suggest the presence of a subsurface ocean beneath its icy crust. ASTEROID BELT Location: Asteroid belts are regions of space located between the orbits of Mars and Jupiter. The main asteroid belt, the most well-known and studied, is found in this region. Composition: Asteroid belts primarily consist of asteroids, which are rocky and metallic objects. These asteroids can vary in size, ranging from small boulders to large bodies several hundred kilometers in diameter. Origin: Asteroid belts are remnants of the early solar system's formation. They are composed of materials that did not coalesce to form planets due to the gravitational influence of Jupiter's powerful gravity. JUPITER Size and Composition: Jupiter is the largest planet in our solar system, with a diameter of about 143,000 kilometers (89,000 miles). It is primarily composed of hydrogen and helium, similar to the composition of the Sun, but it lacks the critical mass required to trigger nuclear fusion and become a star. Great Red Spot: Jupiter is well-known for its iconic feature called the Great Red Spot. It is a persistent high-pressure storm system, appearing as a large reddish-colored oval on the planet's surface. The Great Red Spot is a centuries-old storm that is larger than Earth itself. SATURN Rings of Saturn: Saturn's iconic rings are composed of countless icy particles ranging in size from micrometers to several meters. These rings are made visible by the sunlight reflecting off the particles, creating a stunning and distinct feature. Cassini Mission: The Cassini spacecraft, launched in 1997, provided a wealth of information about Saturn and its moons. It orbited Saturn for over 13 years and captured breathtaking images of the planet, its rings, and its moons. The mission concluded in 2017 with a controlled descent into Saturn's atmosphere. Hexagonal Storm: Saturn's north pole is home to a unique atmospheric phenomenon known as the hexagonal storm. This massive, persistently swirling storm forms a hexagonal shape and has a central vortex. The exact cause of this peculiar weather pattern is still under investigation. COMETS Composition: Comets are composed of ice, rock, dust, and organic compounds. Their icy nucleus contains a mixture of water, frozen gases (such as carbon dioxide and methane), and various types of solid particles. Orbits: Comets have elongated orbits that can take them far from the Sun, often originating from the Kuiper Belt or the Oort Cloud. When a comet's orbit brings it closer to the Sun, the heat causes the ice to vaporize, creating a glowing coma and distinctive tails. Scientific Significance: Comets are of great scientific importance as they provide a window into the early solar system's formation. By studying comets, scientists can gain insights into the composition and processes that occurred during the formation of planets and other celestial bodies billions of years ago. Space missions have been launched to explore and gather data directly from comets, enhancing our understanding of these fascinating objects. URANUS Unique Tilt: Uranus is known for its extreme axial tilt, as it rotates on its side compared to other planets in the solar system. This tilt is believed to have resulted from a collision with a massive object early in its history, causing its axis to be tilted at an angle of about 98 degrees. Atmosphere: Uranus has a predominantly hydrogen and helium atmosphere, but it also contains traces of methane. This methane gives Uranus its distinctive blue-green color, as it absorbs red light and reflects blue and green light back into space. The atmosphere is characterized by high-speed winds, reaching speeds of up to 900 kilometers per hour (560 miles per hour). Moons and Rings: Uranus has 27 known moons, named after characters from the works of William Shakespeare and Alexander Pope. The five largest moons are Miranda, Ariel, Umbriel, Titania, and Oberon. Uranus also has a system of rings, although they are not as prominent as the rings of Saturn. The rings are relatively dark and composed of ice particles mixed with rocky material. NEPTUNE Position and Distance: Neptune is the eighth and farthest planet from the Sun in our solar system, located about 4.5 billion kilometers (2.8 billion miles) away from the Sun. It takes approximately 165 Earth years for Neptune to complete one orbit around the Sun. Composition and Atmosphere: Neptune is an ice giant planet composed mainly of hydrogen, helium, and ices such as water, methane, and ammonia. Its atmosphere contains a high proportion of methane, which gives it a striking blue color. The presence of methane absorbs red light and reflects blue light, resulting in its distinct appearance. Moons and Rings: Neptune has a system of rings and a collection of moons. The most notable moon is Triton, which is the seventh-largest moon in the solar system and the only large moon in the solar system to orbit in the opposite direction of its planet's rotation. Neptune has a total of 14 known moons, including Nereid, Proteus, and Larissa KUIPER BELT Location and Size: The Kuiper Belt is a vast region of the solar system located beyond Neptune's orbit, extending from about 30 to 55 astronomical units (AU) from the Sun. It is estimated to be around 20 times wider and 200 times more massive than the asteroid belt between Mars and Jupiter. Composition and Objects: The Kuiper Belt is primarily composed of small icy bodies, including dwarf planets, comets, and a multitude of smaller objects known as Kuiper Belt Objects (KBOs). The most famous KBO is Pluto, which was reclassified as a dwarf planet in 2006. The region contains remnants from the early solar system and is believed to provide valuable insights into its formation and evolution. PLUTO Dwarf Planet: Pluto was once considered the ninth planet in our solar system but was reclassified as a dwarf planet in 2006 by the International Astronomical Union (IAU). It is located in the Kuiper Belt, a region beyond Neptune's orbit. Characteristics: Pluto has a rocky core surrounded by a thin atmosphere primarily composed of nitrogen, with traces of methane and carbon monoxide. It has five known moons, the largest of which is Charon, and its surface is covered in frozen nitrogen, methane, and carbon monoxide. Pluto's orbit is highly elliptical, and it takes about 248 Earth years to complete one orbit around the Sun. Charon and Other Moons: Pluto has five known moons, with Charon being the largest and most well-known. Charon is so large relative to Pluto that they are sometimes considered a "binary system." The other moons of Pluto are Nix, Hydra, Kerberos, and Styx. OORT CLOUD Distant Region: The Oort Cloud is a hypothetical, vast, and mostly spherical region that is believed to exist in the outermost reaches of the solar system, far beyond the Kuiper Belt. It is thought to extend from about 2,000 to 200,000 astronomical units (AU) from the Sun. Comet Reservoir: The Oort Cloud is believed to be the source of long-period comets, which are comets with orbital periods greater than 200 years. These comets originate from the Oort Cloud and are occasionally gravitationally perturbed, sending them on highly elliptical orbits that bring them into the inner solar system. Icy Objects: The Oort Cloud is presumed to contain trillions of icy bodies, composed primarily of volatile compounds such as water, methane, ammonia, and carbon dioxide. These objects are remnants from the early formation of the solar system and are thought to be relatively undisturbed since their creation billions of years ago.

  • Spacelia Scopic World | SPACELIA

    Exploring the universe with the eyes of Spacelia, Here are some images of galaxies and the deep field also some galaxy clusters, binary system and many more, Spacelia Scopic World Our telescopic discoveries and unique gallery of space images and different space objects hope so you enjoy it.

  • STAR VFTS102 | SPACELIA

    We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotational velocity larger than 500 km s−1 and probably as large as 600 km s−1; as such it would appear to be the most rapidly rotating massive star currently identified. Its radial velocity differs by 40 km s−1 from the mean for 30 Doradus, suggesting that it is a runaway. O-TYPE STAR VFTS102 We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotational velocity larger than 500 km s−1 and probably as large as 600 km s−1; as such it would appear to be the most rapidly rotating massive star currently identified. Its radial velocity differs by 40 km s−1 from the mean for 30 Doradus, suggesting that it is a runaway. By : P. Dufton et al 1. Introduction In recent years the importance of binarity in the evolution of massive stars has been increasingly recognised. This arises from most OB-type stars residing in multiple systems (Mason et al. 2009) and the significant changes to stellar properties that binarity can cause (see, for example, Podsiadlowski et al. 1992; Langer et al. 2008; Eldridge et al. 2011). Here we present a spectroscopic analysis of a rapidly rotating (veq sin i ∼ 600 km s−1) O-type star in the 30 Doradus region of the Large Magellanic Cloud (LMC). Designated VFTS102 (Evans et al. 2011, hereafter Paper I)1, the star is rotating more rapidly than any observed in recent large surveys (M artayan et al. 2006; Hunter et al. 2009) and may also be a runaway. It lies less than one arcminute from the X-ray pulsar, PSR J0537-6910, which is moving away from it. We suggest that VFTS102 might originally have been part of a binary system with the progenitor of the pulsar. 2. Observations Spectroscopy of VFTS102 was obtained as part of the VLT-FLAMES Tarantula Survey, covering the 3980-5050˚A region at a spectral resolving power of 7000 to 8500. Spectroscopy of the Hα region was also available, although this was not used in the quantitative analysis. Details of the observations and initial data reduction are available in Paper I. The spectra were normalised to selected continuum windows using a sigma-clipping rejection algorithm to exclude cosmic rays. No velocity shifts were observed between different epochs, although simulations (see, Sana et al. 2009) indicate that 30% of short period (less 1Aliases include: ST92 1-32; 2MASS J05373924-6909510 –3– than 10 days) and effectively all longer term binaries would not have been detected. We have therefore assumed VFTS102 to be single and the sigma-clipped merged spectrum displays a signal-to-noise ratio of approximately 130 and 60 for the 4000-4500 and 4500-5000˚A regions respectively. An O9: Vnnne spectral classification was obtained by smoothing and rebinning the spectrum to an effective resolving power of 4000 and comparing with standards compiled for the Tarantula Survey (Sana et al. in preparation). The principle uncertainties arise from the extremely large rotational broadening and significant nebular contamination of the He I lines, with the two suffixes indicating extreme line broadening (‘nnn’) and an emission-line s tar (‘e’). 3. Analysis 3.1. Projected rotational velocity The large rotational broadening of the spectral features makes reliable measurements of the projected rotational velocity, veq sin i , difficult. We have used a Fourier Transform (FT) approach as discussed by Sim´on-D´ıaz & Herrero (2007), supplemented by fitting rotational broadened profiles (PF) to the observed spectral features. The Balmer lines have significant nebular emission and hence the weaker helium spectra were utilized, as illustrated in Fig. 1. The He I line at 4471˚A, although well observed, also showed significant nebular emission and was not analysed. By contrast the line at 4026˚A showed no evidence of emission and yielded a plausible minimum in the Fourier Transform for a veq sin i of 560 km s−1. The PF methodology leads to a slightly higher estimate (580 km s−1). The He I lines at 4143 and 4387˚A were observed although they are relatively weak. They and the line at 4026˚A were converted into velocity space, merged and analysed. The two methodologies yielded effectively identical estimates of 640 km s−1; a similar procedure was undertaken for the He II lines at 4200 and 4541˚A yielding 540 km s−1 (FT) and 510 km s−1 (PF). The He II line at 4686˚A was found to be sensitive to the normalisation with a veq sin i of ∼560 km s−1 being estimated. The individual results should be treated with caution but overall they imply that this star is rotating near to its critical velocity, with the mean value for the FT estimates being 580 km s−1. As discussed by Townsend et al. (2004), projected rotational velocities may be underestimated at these large velocities. For a B0 star rotating at 95% of the critical velocity, this underestimation will be approximately 10%. Hence our best estimate for the projected rotational velocity is ∼600 km s−1. A lower limit of 500 km s−1 has been adopted, whilst the upper value will be constrained by the critical velocity of approximately 700 km s−1 from the models of Brott et al. (2011). This estimate is significantly higher than those (! 370 km s−1) found by Martayan et al. (2006) and Hunter et al. (2009) in their LMC B-type stellar samples. It is also larger than any of the preliminary estimates (!450 km s−1) for ∼ 270 B-type stars in the Tarantula survey, although other rapidly rotating O-type stars have been identified. As such it would appear to have the highest projected rotational velocity estimate of any massive star yet analysed. 3.2. Radial velocity Radial velocities were measured by cross-correlating spectral features against a theoretical template spectrum taken from a grid calculated using the code TLUSTY Hubeny (1988) – see Dufton et al. (20 05) for details. Five spectral regions were considered, viz. Hδ and Hγ (with the cores excluded); He I at 4026˚A; 4630-4700˚A with strong multiplets due to C III and O II and an He II line; 4000-4500˚A (with nebular emission being excluded). The measurements are in excellent agreement with a mean value of 228±12 km s−1; if the error distribution is normally distributed the uncertainty in this mean value would be 6 km s−1. From a study of ∼180 presumably single O-type stars in the Tarantula survey Sana et al. (in preparation) find a mean velocity of 271 km s−1 with a standard deviation of 10 km s−1. Preliminary analysis of the B-type stars in the same survey has yielded 270±17 km s−1. VFTS102 lies more than two standard deviations away from these results, implying that it might be a runaway. 3.3. Atmospheric parameters While the equatorial regions of VFTS102 will have a lower gravity than the poles (because of centrifugal forces), and hence a lower temperature (because of von Zeipel gravity darkening), we first characterise the spectrum by comparison with those generated with spatially homogeneous models, convol ved with a simple rotational-broadening function. We have used both our TLUSTY grid and FASTWIND calculations (Puls et al. 2005), adopting an LMC chemical composition. For the former, the strength of the He II spectrum implies an effective temperature (Teff) of ∼32500–35000 K, whilst the wings of the Balmer lines lead to a surface-gravity estimate of ∼3.5 dex (cgs). For the latter after allowing for wind effects, the corresponding parameters are 37000 K and 3.7 dex. The helium spectra are consistent with a solar abundance but with the observational and theoretical uncertainties we cannot rule out an enhancement. Given its projected equatorial rotation velocity, VFTS102 is almost certainly viewed at sin i ∼ 1. Hence the relatively cool, low-gravity equatorial regions will contribute significantly to the spectrum. Although their surface flux is lower than for the brighter poles, the analyses discussed above may underestimate the global effective temperature and gravity. However, the rotating-star models discussed below suggest that the effects are not very large. We therefore adopt global estimates for the effective temperature of 36000 K and 3.6 dex but note that the polar gravity could be as large as 4.0 dex. Varying the global parameters by the error estimates listed in Table 1 leads to significantly poorer matches between observation and the standard models, but, given the caveats discussed above, those errors should still be treated with caution. For near critical rotational velocities, the stellar mass can be estimated. Howarth & Smith (2001) show that the stellar mass can be written in terms of ω/ωc 2, veq and the polar radius. Assuming that sin i ∼ 1 and adopting the critical velocities from our single star models, we can estimate the first two quantities. Additionally for any given value of ω/ωc, the polar radius can be inferred from the absolute visual magnitude and the unreddened (B-V). The former can be estimated from the luminosity (see Sect. 3.4) and the latter from our effective temperature estimate and the LMC broad-band intensities calculated by Howarth (2011). We find M " 20 M# for veq ∼ 600 km s−1 and Teff ! 38000 K. Only by adopting a smaller value for veq can we push the mass limit down, but even with veq ∼ 500 km s−1 the mass must exceed ∼17M#. 3.4. Luminosity From extant photometry (see Paper I), the (B-V) colour of VFTS102 is 0.35, implying an E(B-V) of 0.6 using colours calculated from our TLUSTY grid. Adopting a standard reddening law leads to a lo garithmic luminosity (in solar units) of 5.0 dex, with an E(B-V) error of ±0.1 corresponding to an uncertainty of ±0.1 dex. However there are other possible sources of error, for example deviations from a standard reddening law and hence we have adopted a larger random error estimate of ±0.2 dex. 2The ratio of the equatorial angular velocity to that at which the centrifugal acceleration equals the gravitational acceleration. As VFTS102 is an Oe-type star, its intrinsic colours may be redder than predicted by our TLUSTY grid and indeed an infrared excess is found from published (de-reddened) 2MASS photometry. Inspection of a K-band VISTA image shows no evidence of contamination by nearby sources. Further evidence for circumstellar material is found in the strong Hα emission, which is double peaked as is the nearby He I line at 6678˚A, which supports our adoption of a sin i ∼ 1. Additionally there are weak double-peaked Fe II emission features (e.g. at 4233˚A), consistent with an Oe-type classification. Unfortunately our photometry and spectroscopy are not contemporaneous but if VFTS102 was in a high state when the optical photometry was taken, we may have overestimated the luminosity of the central star (see de Wit et al. 2006, for colour and magnitude variations of Be stars). 4. Past and future evolution Stellar evolution calculations for both single and binary stars are available in the literature (see Maeder & Meynet 2011). For very fast rotation, they suggest that rotational mixing is so efficient that stars may evolve quasi-chemically homogeneously (Maeder 1987; Woosley & Heger 2006; Cantiello et al. 2007 ; de Mink et al. 2009; Brott et al. 2011). However, with different physical assumptions, models do not evolve chemically homogeneously even for the fastest rotation rates (Cantiello et al. 2007; Ekstr¨om et al. 2008). 4.1. Single star evolution Fig. 2 illustrates evolutionary tracks for LMC single stars calculated using the methodology of Brott et al. (2011) for an initial equatorial rotational velocity of 600 km s−1, together with that for a more slowly rotating model. The former are evolving chemically homogeneously whilst the latter follows a ‘normal’ evolutionary path. Ekstr¨om et al. (2008) calculated models for a range of metallicities and masses between 3 and 60 M# but found that the stars followed normal evolutionary paths even for near critical rotational velocities. The estimated parameters of VFTS102 are consistent with our tracks for initial masses of ∼20-30 M#. Our models show a relatively rapid increase in the surface helium abundance due to their homogeneous evolution. For example the 25 M# model shows an enrichment of a factor of two after approximately 4 million years and when the effective temperature has increased to approximately 39000 K. By contrast the models of Ekstr¨om et al. (2008) show no significant helium abundance implying that an accurate helium abundance estimate for VFTS102 would help constrain the physical assumptions. –7– 4.2. Binary star evolution Below, we first discuss the environment of VFTS102 and then consider a possible evolutionary scen a rio. 4.2.1. A pulsar near VFTS102 VFTS102 lies in a complex environment near the open cluster NGC 2060. In particular it lies close to a young X-ray pulsar PSR J0537-6910 (Marshall et al. 1998) and the Crab-like supernova remnant B0538-691 (Micelotta et al. 2009). VFTS102 has an angular separation of approximately 0.8 arcminutes from PSR J0537-6910 implying a spatial separation (in the plane of the sky) of approximately 12 pc. The X-ray emission consists of a pulsed localised component and a more spatially diffuse component, with the latter providing the majority of the energy. The diffuse component was identified in ROSAT and ASCA observations by Wang & Gotthelf (1998a) and interpreted as coming from ram-pressure-confined material with the X-ray pulsar being identified soon afterwards by Marshall et al. (1998). Wang & Gotthelf (1998b) analysed ROSAT HRI observations and suggested that the emission could come from the remnants of a bow shock if the pulsar was moving with a velocity of ∼1000 km s−1. Wang et al. (2001) subsequently analysed higher spatial resolution CHANDRA observations, which clearly delineated this emission and implied that the pulsar was moving away from VFTS102. Fig. 3 superimposes these emission contours onto an HST optical image with VFTS102 being near the tail of these contours. As discussed by Wang et al. (2001) the spatial distribution of the diffuse X-ray emission and the SNR optical emission are well correlated. Differences probably arise from a foreground dark cloud and photoionization and mechanical energy input from the nearby open cluster. Timing measurements imply that the pulsar has a characteristic age of 5000 years (Marshall et al. 1998), consistent with the age estimate of Wang & Gotthelf (1998b) from analysis of X-ray emission. Spyrou & Stergioulas (2002) discuss the estimation of ages from spin rates and find the results to be sensitive to both the breaking index and the composition of the pulsar core. Indeed phase connected braking index measurements for young pulsars (see Zhang et al. 2001, and references therein) yield breaking indices lower than the n=3 normally adopted with corresponding increases in the characteristic ages. Additionally, Chu et al. (1992) found an age of approximately 24000 years from the kinematics of the supernova remnant. Adopting an age of 5000 years would imply that if these objects had been part of a binary system, their relative velocity (vs ) in the plane of the sky would be approximately 2500 km s−1. Increasing this age to 24000 years would then imply vs ∼ 500 km s−1. These values although large are consistent with a pulsar velocity of 1000 km s−1 in the model of Wang & Gotthelf (1998b) and of ∼600 km s−1 from the separation of the diffuse X-ray and radio emission (Wang et al. 2001). Additionally Hobbs et al. (2005) found a mean space velocity of approximately 400 km s−1 for a sample of young pulsars with velocities as high as 1600 km s−1. From the theoretical point of view, Stone (1982) found supernova kick velocities normally in excess of 300 km s−1, while more recently Eldridge et al. (2011) estimated kickvelocities for a single neutron star of more than 1000 km s−1with a mean value of ∼500 km s−1. 4.2.2. A binary evolution scenario for VFTS1 02 While the fast rotation of VFTS102 might be the result of the star formation process, it could also have arisen from spin-up due to mass transfer in a binary system (Packet 1981). A subsequent superno va explosion of the donor star could then lead to an anomalous radial velocity for VFTS102 (Blaauw 1961; Stone 1982). The nearby pulsar and supernova remnant make this an attractive scenario. Of course, we cannot eliminate other possible scenarios, e.g. dynamical ejection from a cluster (see Gvaramadze & Gualandris 2011) but it is unclear whether these could produce the very large rotational velocity of VFTS102. Cantiello et al. (2007) have modelled a binary system with initial masses of 15 and 16 M# adopting SMC metallicity. After mass transfer the primary exploded as a type Ib/c supernova. At that stage the secondary has a mass of approximately 21 M#, a rotational velocity close to critical and a logarithmic luminosity of approximately 4.9 dex (see Fig. 2 for its subsequent evolution). These properties closely match the estimates for VFTS102 summarized in Table 1. Based on grids of detailed binary evolutionary models (Wellstein et al. 2001; de Mink et al. 2007), the initial masses of the two components of such a binary system should be comparable, with M2/M1 " 0.7. If the initial mass of the secondary was in the range of 14-18 M#, that of the primary would need to be smaller than about 25 M#. This agrees with the estimated initial mass of the supernova progenitor based on the kinematics of the supernova remnant (Micelotta et al. 2009). In this scenario, it takes the primary star about 11 Myr to evolve to the supernova stage. While the most massive stars in 30 Doradus have ages of a few million years (Walborn et al. 1999), there is also evidence for different massive stellar populations with ages ranging up to about 10 Myr (Walborn & Blades 1997). Recently, De Marchi et al. (2011) have undertaken an extensive study of lower mass (!4 M#) main sequence and pre-main sequence stars in 30 Doradus. They obtain a median age of 12 Myr with ages of up 30 Myr. Hence it would appear possible that the putative binary system formed in the vicinity of 30 Doradus approximately 10 Myr ago and underwent an evolutionary history similar to that modelled by Cantiello et al. (2007). Proper motion information would be extremely valuable to further test this hypothesis. PSR J0537-6910 has not been definitely identified in other wavelength regions. Mignani et al. (2005) using ACS imaging from the Hubble Space telescope found two plausible identifications that would imply an optical luminosity similar to the Crab-like pulsars. A radio survey by Manchester et al. (2006) only yielded an upper limit to its luminosity consistent with other millisecond pulsars. However estimates for both components may be obtained from the HST proper motion study (Programme: 12499; PI: D.J. Lennon) that is currently underway. 4.3. Evolutionary future Irrespective of the origin of VFTS102, it is interesting to consider its likely fate. Stellar evolutionary models of rapidly rotating stars have recently been generated by Woosley & Heger (2006) and Yoon et al. (2006). The latter consider the fate of objects with rotational velocities up to the critical val ue (vc ). The evolution is shown to depend not only on initial mass and rotational velocity but also on the metallicity. In particular GRBs are predicted to occur only at sub-solar metallicities. Based on our single star models, VFTS102 has a rotational velocity above ∼ 0.8vc and is thus expected to evolve quasi-chemically homogeneously. While Yoon et al. (2006) and Woosley & Heger (2006) estimate the metallicity threshold for GRB formation from chemically homogeneous evolution to be somewhat below the LMC metallicity, the latter note its sensitivity to the mass loss rate (Vink & de Koter 2005). Indeed all our most rapidly rotating 20 − 30 M# models are evolving chemically homogeneously throughout core hydrogen burning (Fig. 2), a prerequisite to qualify for a GRB progenitor. In any case, within the context of homogeneous evolution VFTS102 is expected to form a rapidly rotating black hole, and a Type Ic hypernova. This conjecture remains the same within the binary scenario of Cantiello et al. (2007). Assuming a space velocity of 40 km s−1 for VFTS102 (compatible with its anomalous radial velocity), our evolutionary models imply that VFTS102 will travel ∼300-400 pc before ending its life. This is consistent with the finding of Hammer et al. (2006) that the locations of three nearby GRBs were found several hundred parsecs away from their most likely progenitor birth locations (see, however, Margutti et al. 2007; Wiersema et al. 2007; Han et al. 2010). 5. Conclusions VFTS102 has a projected rotational velocity far higher than those found in previous surveys of massive stars in the LMC, and indeed it would appear to qualify as the most rapidly rotating massive star yet identified. With a luminosity of 105 L# we estimate its current mass to be approximately 25 M#. Its extreme rotation, peculiar radial velocity, proximity to the X-ray pulsar PSR J0537-6910 and to a superno va re mnant suggest that the star is the result of binary interaction. It is proposed that VFTS102 and the pulsar originated in a binary system with mass transfer spinning-up VFTS102 and the supernova explosion imparting radial velocity kicks to both components. If evolving chemically homogeneously, as suggested by recent models, VFTS102 could become a GRB or hypernova at the end of its life. Additionally it may provide a critical test case for chemically homogeneous evolution. SdM acknowledges NASA Hubble Fellowship grant HST-HF- 51270.01-A awarded by STScI, operated by AURA for NASA, contract NAS 5-26555. NM acknowledges support from the Bulgarian NSF (DO 02-85). We would like to thank Paul Quinn, Stephen Smartt, Jorick Vink and Nolan Walborn for useful discussions. This paper makes use of spectra obtained as part of the VLT-FLAMES Tarantula Survey (ESO programme 182.D-0222). Facilities VLT:Kueyen (FLAMES) Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop Zombie Planets Proxima Centauri b TRAPPIST-1

  • Multiness of Thoughts | SPACELIA

    What we are experiencing right now, whether we have a dream or a thought represents our future, it means that what we think will happen to us, so always keep positive thinking. You may have seen the movie Interstellar where a man controls the fourth dimension from the future and how our present is connected to our past. Multiness of Thoughts What we doing, what we experiencing, what we thinking is a multiness of thoughts Multiness of Thoughts What we are experiencing right now, whether we have a dream or a thought represents o ur future, it means that what we think will happen to us, so always keep positive thinking. You may have seen the movie Interstellar where a man controls the fourth diamentio from the future and how our present is connected to our past, this basic concept is what I call the concept of Multiness of Thoughts. this concept is also connected with quantum theories, because this theory also say that all thigs which we see is create with our thoughts and after we see it's die immediately. An idea that forces us to think, what you are thinking now or what is happening to you is dependent on your footing, but how? What if you go ahead and get a good job, but you don't study? So you may not have sat on that achievement. Just like in the interstellar movie, your future is writing the present to you, the result of what you are doing now will be found in the future, so it is you who controls you from the future in the present. And against this, even if you connect the concept to the deje wan effect, you will get today's result, if future is actual then present, not actually, but yes it can be said that future is as equivalent as our present thoughts or our present situation right. And this universe is also a part of our concept, science su? Science is a medium to show our thoughts and our ability, so what is not like science? Not actually but science is a loop made up of our thoughts and just a thought? Is there a medium we use to present our skills? And all this is a multiplicity of ideas. It is human nature that if you think about something, then you walk in the light of that thing and your thoughts start to create that thing. So everything is just an illusion. We are a part of this universe, so whatever theories we have are the thoughts of our mind which we want to make true by any means. You must have experienced that sometimes when you go into deep thoughts, that thought seems true to you in real life too and this also happens with our dreams, then everything is fine, it is just an illusion of our thoughts and brain. This theory is the theory of multiness of thoughts. Other Articles...... Dark Energy Zombie Planets The Dream Mission Creation of Mind Loop STAR VFTS102 KEPLER-186f Proxima Centauri b TRAPPIST-1

  • KEPLER-452b | SPACELIA

    Kepler-452b, often referred to as "Earth's cousin," is an exoplanet that was discovered by NASA's Kepler Space Telescope. It was announced as a significant discovery in July 2015. Here's a detailed explanation of Kepler-452b, including information about its characteristics, atmosphere, and the potential for extraterrestrial life KEPLER-452b Kepler-452b, often referred to as "Earth's cousin," is an exoplanet that was discovered by NASA's Kepler Space Telescope. It was announced as a significant discovery in July 2015. Here's a detailed explanation of Kepler-452b, including information about its characteristics, atmosphere, and the potential for extraterrestrial life 1. Characteristics of Kepler-452b: Size and Mass: Kepler-452b is considered a super-Earth, as it is larger than Earth, with an estimated radius about 1.6 times that of Earth. However, its exact mass is still uncertain, as it depends on its composition, which is not precisely known. Orbit: Kepler-452b orbits a star known as Kepler-452, which is very similar to our Sun in terms of both size and temperature. Its orbit around Kepler-452 takes approximately 385 days, making it roughly analogous to Earth's year. Distance from Star: Kepler-452b is located within the habitable zone of its parent star. The habitable zone, also known as the "Goldilocks zone," is the region around a star where conditions may be right for liquid water to exist on the planet's surface—a key factor for the potential development of life as we know it. Age: The host star Kepler-452 is older than our Sun, estimated to be around 6 billion years old, which could have allowed more time for life to potentially develop on Kepler-452b. 2. Atmosphere of Kepler-452b: The exact composition and characteristics of Kepler-452b's atmosphere are not currently known. The detection and analysis of exoplanet atmospheres are challenging tasks and often require advanced instruments like the James Webb Space Telescope (scheduled for launch) to provide more detailed information. The presence and composition of an atmosphere are critical factors in determining the potential habitability of an exoplanet. An atmosphere can help regulate temperature, protect against harmful radiation, and play a role in supporting life processes. 3. Potential for Extraterrestrial Life: Kepler-452b's location within the habitable zone of its star makes it an intriguing candidate for the potential existence of extraterrestrial life. The habitable zone represents the region where conditions might be suitable for liquid water, a fundamental ingredient for life as we know it, to exist on the planet's surface. However, the presence of liquid water alone does not guarantee the existence of life. Many other factors, such as the planet's atmosphere, geological activity, and the availability of essential chemical ingredients, would also influence its habitability. Detecting signs of life on Kepler-452b or any exoplanet is extremely challenging and would likely require advanced telescopes capable of analyzing the planet's atmosphere for biomarkers (e.g., oxygen and methane) or other potential signs of biological activity. Kepler-452b and Earth are both planets, but they have some significant differences, as well as similarities. Here's a comparison between the two: 1. Size and Mass: Earth: Earth is approximately 12,742 kilometers (7,918 miles) in diameter and has a mass of about 5.972 × 10^24 kilograms. Kepler-452b: Kepler-452b is estimated to be about 1.6 times the size (radius) of Earth, but its mass is not precisely known. It's considered a super-Earth. 2. Orbit and Parent Star: Earth: Earth orbits the Sun, a G-type main-sequence star (G2V), at an average distance of about 149.6 million kilometers (93 million miles). Kepler-452b: Kepler-452b orbits a G-type main-sequence star (G2V) known as Kepler-452, which is very similar to the Sun. Its orbital period is approximately 385 Earth days. 3. Habitability and Atmosphere: Earth: Earth has a diverse and life-sustaining atmosphere composed primarily of nitrogen (78%) and oxygen (21%), with trace amounts of other gases. It has liquid water on its surface and a stable climate, making it highly habitable. Kepler-452b: The exact composition of Kepler-452b's atmosphere is not known, and its habitability is still uncertain. It's located within the habitable zone of its star, indicating the potential for liquid water, but more information about its atmosphere is needed to assess its suitability for life. 4. Age: Earth: Earth is approximately 4.5 billion years old. Kepler-452b: The host star Kepler-452 is estimated to be about 6 billion years old, making it older than the Sun. This could have implications for the potential development of life on the planet. 5. Surface Conditions: Earth: Earth has a diverse range of surface conditions, including continents, oceans, and various climate zones. It supports a wide variety of life forms and ecosystems. Kepler-452b: The specific surface conditions of Kepler-452b, such as the presence of oceans or continents, are not known due to limited observational data. 6. Potential for Extraterrestrial Life: Earth: Earth is known to host a vast array of life, from microorganisms to complex multicellular organisms, including humans. Kepler-452b: Kepler-452b is considered a potentially habitable exoplanet due to its location within the habitable zone, but the presence of extraterrestrial life on the planet is purely speculative at this point. More research and observations are needed to assess its habitability and the potential for life. Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop STAR VFTS102 KEPLER-186f Proxima Centauri b TRAPPIST-1

  • Trappist-1 System | SPACELIA

    The TRAPPIST-1 system is a planetary system with seven Earth-sized planets orbiting a red dwarf star, TRAPPIST-1, located about 40 light-years away. Three of these planets, TRAPPIST-1e, f, and g, are within the star's habitable zone, where temperatures could allow for liquid water on the surface. Map of Trappist-1 star system Trappist-1 System Heliocentric system is a fully functional detail map of our solar system with sun and all planets and natural satellites of all planets, asteroids and comets also. we designed this map as natural and graphical and easy to understand our solar system at first time. Trappist-1 b c d e f g h

  • Worm Hole | SPACELIA

    Worm Holes are one of the mysterious phenomenon in this Universe, It has the ability to bend the space time and let you to travel through Space and Time in a shorter period, Help of this phenomenon we could travel through galaxies that seems impossible right now. Worm Hole Let's begin the curvature of worm hole What is a worm hole?, how are worm holes formed?, and what is the function of a worm hole?, I will tell you all this in this article today, so first let's talk about what a worm hole is, how these worm holes are made and How it works, so worm hole connects two different places in space, just like a bridge, so that we can cover long distances in a short time, as you see in the image below, worm hole space. It bends like this and we can show it as a circle and a circle is a sphere in 3D, so the worm hole is also like a sphere. By traveling in this, you can bridge the distance between two places in a very short time, but a big question is that how are worm holes formed? We have heard about black holes that they are formed after supernova, but worm holes are We do not know how they are formed, worm holes are not a natural phenomenon, we have to create them artificially. But till date we have not succeeded in creating such a big worm hole, we have definitely done this test on a very small level but it is not enough for a human being, so only some advanced civilization can do this in the future. You are controlling us and they can create a worm hole just like the interstellar movie.

  • Zombie Planets | SPACELIA

    Zombie planets, also known as "pulsar planets" or "planets around pulsars," are a fascinating and relatively rare astronomical phenomenon Zombie Planets Zombie planets, also known as "pulsar planets" or "planets around pulsars," are a fascinating and relatively rare astronomical phenomenon Zombie Planets Zombie planets, also known as "pulsar planets" or "planets around pulsars," are a fascinating and relatively rare astronomical phenomenon. Here's a more detailed description and some interesting facts about zombie planets: Description: Zombie planets are exoplanets that survive the catastrophic death of their parent stars and continue to exist in orbit around a highly dense remnant called a pulsar. Pulsars are rapidly rotating neutron stars formed after massive stars undergo a supernova explosion. These pulsars emit intense beams of radiation from their poles, resembling lighthouse beams, due to their rapid rotation. If a planet is close enough to the pulsar but outside its destructive beam, it can potentially survive as a "zombie planet." Facts: Host Star Demise: Zombie planets are the remnants of planetary systems that were once part of a massive star. When the star runs out of nuclear fuel, it undergoes a supernova, releasing an enormous amount of energy, and leaving behind a collapsed core—a neutron star or pulsar. Extreme Conditions: Zombie planets are exposed to harsh conditions. They are incredibly cold and dark since they no longer receive any energy from their deceased parent star. Instead, they rely on the faint radiation and residual heat from the pulsar. Radioactive Environment: Pulsars emit powerful radiation, including X-rays and gamma rays, due to their rapid rotation and intense magnetic fields. Zombie planets within the pulsar's vicinity experience extreme radiation, making them inhospitable to life as we know it. Detection Challenges: Detecting zombie planets is challenging due to their remote and faint nature. Astronomers have to use advanced techniques, such as pulsar timing and indirect methods, to infer the presence of these planets. Potential Habitability: While the surface of zombie planets is inhospitable, there is speculation that subsurface regions or oceans shielded from radiation might harbor conditions suitable for life to exist. Candidate PSR B1257+12: One of the first and best-studied examples of a pulsar with planets is PSR B1257+12, located about 980 light-years away in the constellation Virgo. It has three known planets. Formation Theories: Zombie planets can potentially form from debris disks or leftover material around the pulsar after the supernova event. Another possibility is the capture of planets from other star systems. Interaction with Pulsar: The presence of a planet can influence the pulsar's rotational dynamics. The planet's gravitational pull causes slight variations in the pulsar's signal, enabling scientists to indirectly detect their presence. Astrophysical Curiosities: Zombie planets are intriguing astrophysical curiosities that expand our understanding of planetary systems, stellar evolution, and the complex dynamics in extreme environments. Future Exploration: As technology and observational capabilities improve, astronomers hope to discover more zombie planets and gain insights into their properties, helping us unravel the mysteries of these captivating celestial objects. Zombie planets represent a fascinating intersection of stellar remnants and planetary systems, offering a glimpse into the resilience of planets surviving extreme events in the universe. Further research and discoveries in this field may shed more light on these mysterious worlds. Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop STAR VFTS102 KEPLER-186f Proxima Centauri b TRAPPIST-1

  • Inflationary Cosmology | SPACELIA

    Inflationary cosmology is a theoretical framework in physical cosmology that proposes a rapid exponential expansion of space in the early universe. It was first proposed by physicist Alan Guth in 1980 to address several puzzles in the standard Big Bang cosmology, such as the horizon problem, the flatness problem, and the origin of structure in the universe. Inflationary Cosmology Theory Concept...... Inflationary cosmology is a theoretical framework in physical cosmology that proposes a rapid exponential expansion of space in the early universe. It was first proposed by physicist Alan Guth in 1980 to address several puzzles in the standard Big Bang cosmology, such as the horizon problem, the flatness problem, and the origin of structure in the universe. The key idea behind inflation is that the universe underwent a brief period of extremely rapid expansion, driven by a hypothetical scalar field called the inflaton. During this inflationary epoch, the universe expanded exponentially, stretching quantum fluctuations to macroscopic scales and smoothing out the curvature and density of space. This expansion also effectively "ironed out" any irregularities in the early universe, explaining the uniformity of the cosmic microwave background radiation observed today. Inflationary cosmology has been supported by a variety of observational data, including measurements of the cosmic microwave background radiation by satellites like the Wilkinson Microwave Anisotropy Probe (WMAP) and the Planck satellite. These measurements have provided strong evidence for the predictions of inflation, such as the nearly scale-invariant spectrum of primordial density fluctuations. Despite its success in addressing many cosmological puzzles, inflationary cosmology is still a subject of active research and debate. There are various models of inflation, each with its own predictions and implications for the universe's early history. Additionally, there are ongoing efforts to test inflationary predictions through observations of the cosmic microwave background, gravitational waves, and large-scale structure in the universe. Some challenges and open questions remain within the framework of inflationary cosmology, including the initial conditions problem (i.e., explaining how inflation started and why the inflaton field had the necessary properties), the reheating mechanism (i.e., how the energy stored in the inflaton field was converted into ordinary matter and radiation), and the so-called "multiverse" implications (i.e., the idea that inflation can lead to the creation of multiple universes with different properties). Overall, inflationary cosmology has had a profound impact on our understanding of the early universe and continues to shape theoretical research in cosmology and particle physics. Chat Section If you have any question ask me here.... Other Articles...... Theories Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop Today Onward Theory Parallel World Travel We are our GOD STAR VFTS102 KEPLER-452b Proxima Centauri b TRAPPIST-1

  • Planetary System | SPACELIA

    Map of the different different planetary systems with introduction of star and planets. Planetary System Interesting facts and information about object of our solar system. Heliocentric System Welcome visitors to your site with a short, engaging introduction. Double click to edit and add your own text. View Map Trappist-1 System Welcome visitors to your site with a short, engaging introduction. Double click to edit and add your own text. View Map

  • Age of our Universe | SPACELIA

    Age of our Universe Coming Soon.......

  • String Theory | SPACELIA

    String Theory Introduction: String theory represents a revolutionary paradigm shift in our understanding of the universe at its most fundamental level. It endeavors to reconcile the seemingly disparate realms of quantum mechanics and general relativity, offering a unified framework that could elucidate the nature of reality itself. This scientific theory proposes that the basic constituents of the universe are not point-like particles but rather minuscule, vibrating strings. Theory Foundation: At its core, string theory posits that these strings, through their vibrational patterns, give rise to the diverse array of particles and forces observed in the cosmos. By treating particles not as dimensionless points but rather as extended objects with finite size, string theory introduces a novel approach to understanding the fundamental building blocks of matter and energy. Interconnectedness: String theory establishes an intricate web of connections between seemingly disparate phenomena in the universe. The vibrational modes of these strings correspond to different particles and their properties, offering a unified explanation for the diverse spectrum of particles observed in nature. Moreover, string theory suggests the existence of additional spatial dimensions beyond the familiar three, providing a potential framework for understanding elusive phenomena such as dark matter and dark energy. Application at the Atomic Level: At the atomic level, string theory provides insights into the behavior of particles and the underlying forces governing their interactions. By elucidating the vibrational dynamics of strings, physicists aim to unravel the mysteries of particle physics and uncover new phenomena that lie beyond the reach of current experimental techniques. Additionally, string theory offers a fresh perspective on exotic phenomena such as black holes, offering new mathematical tools for understanding these cosmic enigmas. Conclusion: In summary, string theory represents a bold and ambitious attempt to construct a unified theory of physics, capable of describing all fundamental forces and particles within a single, coherent framework. While much work remains to be done to fully develop and validate the theory, its potential implications for our understanding of the universe are profound. String theory continues to inspire scientific inquiry and exploration, offering a tantalizing glimpse into the deepest mysteries of the cosmos. Chat Section If you have any question ask me here.... Other Articles...... Theories Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop STAR VFTS102 KEPLER-452b Proxima Centauri b TRAPPIST-1 Today Onward Theory Parallel World Travel We are our GOD Inflationary Cosmology Black Hole information paradox

  • SPACELIA | Space Science & Exploration

    Spacelia is a space research and exploration website, it's provides you a space knowledge and informative facts about space POSTS The Messier Objects Unlock the mysteries of the Messier Catalog! Our blog series unveils the fascinating deep-sky objects any astronomy enthusiast can observe. Start Now The Unique Galaxies Unveil the wonders of the cosmos! Our blog series dives into unique galaxies, exploring their shapes, formation, and the secrets they hold. Start Now MAP OF THE SOLAR SYSTEM VIEW MAP SPACE RESEARCH PROGRAM RESEARCH MISSIONS List of all the Space Mission. Read More Blogs READ OUR WRITINGS 此語言尚未有已發佈之文章 文章發佈後將於此處顯示。 Blogs Category CATEGORIES OF WHAT BLOGS ARE FROM EXOPLANET MISSION BINARY SYSTEM Articles Read More Read More Read More Read More PHOTO ALBUM GALLERY GALLERY Publication GALLERY NEWS Members Invite SPACELIA 在行動裝置上加入我們! 下載 Spaces by Wix 應用程式並加入「SPACELIA」,隨時輕鬆掌握最新動態。 寄出 地區 +972 電話號碼 Contact Us Subscribe Form Join Thanks for subscribing!

  • Jain geography | SPACELIA

    The universe for Jains is an elaborate system. Jain cosmology is very distinctive, although it shares some features with other Indian religious traditions. It is centred on the everlasting and non-originating nature of the universe, and thus excludes the notion of a creator-god. Jain geography All about Jain's geography and space science Introduction The universe for Jains is an elaborate system. Jain cosmology is very distinctive, although it shares some features with other Indian religious traditions. It is centred on the everlasting and non-originating nature of the universe, and thus excludes the notion of a creator-god. As written by a leading monastic figure from the 12th century, ‘the universe having the shape of a man standing with arms akimbo, with feet apart, filled with substances continuously being created, preserved and destroyed, has never been produced by anyone and is not sustained by anyone either. It exists by itself, without any support’.[1] Although Jains do not worship a creator-god, deities do exist, as mediators between the perfected souls of the Jinas and the imperfect world of human experience, and are a part of the Jain cosmology. Structure of the Jain Universe The Jains distinguish two types of space. The first is the world space (loka-ākāśa), which is a vast but limited area where all souls live in the different body-forms they take according to their rebirths in the various worlds. The second is the non-world space (aloka-ākāśa), which is endless. The Jain universe is perfectly structured and ordered. One of its governing principles is symmetry and repetition, so that ‘to know one part is to know the whole’. It can be viewed as ‘a self-replicating composite’ with, for example, a northern region the exact replica of its southern counterpart, halves being identical, etc. The Jain universe is thought of in terms of dimensions and quantities of units. Jain thinkers have produced a vast vocabulary to describe and understand units of time and space, going from the smallest to the largest, beyond what can be imagined. The smallest unit is the atom. Infinite combinations of atoms make up the smallest unit of measurement. At the other extreme, Jains have devised a refined analysis of extremely large numbers, considering the numerable, the innumerable and the infinite. Jain cosmology gives an important place to mathematical concepts and calculations, so that mathematical treatises written by the Jains may take their illustrative examples from cosmological contexts. Śvetāmbaras and Digambaras agree on the structure of the universe and its elements but differ on many names and numbers. Grasping Jain cosmology is vital to understanding the Jain religion. The soul is an innately pure substance. But, due to embodiment and activity, good or bad, it accumulates karma, which in the Jain understanding means physical matter. This alters the purity of the soul and generates cycles of rebirths within the universe until this finally ends. Rebirth can take one of the following four forms of destiny (gati): 1. as a human (manuṣya); 2. as an inhabitant of the hells (naraka); 3. as a deity (deva); or 4. as an animal or plant (tiryag). Spiritual progression requires an understanding of these cosmological theories. Contemplating the universe is also included within the system of reflection-topics (anuprekṣā). Jambudweep This topic can not be logically or physically proven. It can only be understood on the base of Aagam Vani. You may not be able to beleive it if you think it from modern view as it exists right now. This has to be taken on faith to understand and the main foundation of its understanding is Kevalgyan. Two vertical lines are Tras Nadi where Tras Jeev live. This is in the middle with 13 Raju height. Not covering 1 Raju at the top. Every structure we understand or is described is contained within Tras Nadi. Everything outside is only 1 sensory Jeev called Sthavar Jeev. Middle part is Madhya Lok. Middle Earth. 5 Meru parvat in the middle. Sudarshan Meru/Sumeru is the basis of differentiation of 3 Lok. Madhyalok height is defined by Sumeru Parvat. Below it is Adholok. Above it is Urdhvalok. Physical Dimensions: Bottom – 7 Raju Middle – 1 Raju Up Middle – 5 Raju Top – 1 Raju Depth – 7 Raju Height – 14 Raju Volume 343 Raju^3 Scale: Raju/Rajju is a measurement unit. 1 Raju = Infinite Yojan 1 Yojan = 2000 Kos 1 Kos = 2 Miles 1 Mile = 1.64 Km Strange Facts In front of Jain Geography, the principles and discoveries of our science and space become false, because in Jain Geography, the house is considered as a divine plane, whatever nature the house has, that plane will also be of that type, and in the same way in Jain Geography The sun is considered as the plane of heat and the moon as the plane of coolness and an interesting fact about it is that in Jain geography there are two suns and two moons. According to Jainism, man can never go to the Moon or any other planet! Yes, you are listening right, I know that it sounds very different, but it is not a matter that these things are only heard somewhere, this principle is also a reality in Puranas and the map you are seeing above is also Jambudweep. It is from Another special thing in this is that in the middle of Jambudweep, there is Mount Meru, at some distance of which all the things of this universe are present, and according to this, we humans can never reach this sacred plane and all the other things, there is also a solid proof of this. There is a reason which I will tell you later. Yes, I know you will definitely be shocked to hear all this, but it is true and there is also one thing that Jain geography is very different and unique from our modern space science, but I will tell you further in the rest of the information. Who created our Universe according to Jainism No, as per Jainism Universe is eternal. It's neither created nor shall it ever collapse. Now to the question, i.e. what led to the creation (read structure) of the universe ? To keep things simple, we will just concentrate on the middle world where we humans live as it will help us better understand the structure and operations of the universe on the foundations of our current knowledge on the subject. What is outside of the Universe Well, that would define how you describe the universe as. As per Jainism, the universe consists of broadly two regions viz Lokakash and Alokakash 1st region Lokakash is the region that consists of all things made of a material that exhibits the property of Fusion (Pud) and Fission (Gal) which we call matter today. Its this region of the universe that hosts our planet and all other alien habitable planets that support intelligent lifeforms, along with higher and lower planes where demigods and hellish beings reside.

  • How we Evolved | SPACELIA

    Evolution process of Humans, the cycle of evolution from a tiny cell to the multicell body and human intelligence. How we Evolved

  • Portfolio | SPACELIA

    Explore the cosmos with us! Dive into our portfolio of space-themed projects, from breathtaking visuals of celestial objects to informative pieces on space exploration and regulations. Portfolio In the portfolio section, you will get the explanation of the topic with images so that you will be able to learn well and will not get bored.

  • Hubble's Nebulae | SPACELIA

    Hubble's Nebulae Hubble telescope discovered some nebulae here is an image and detail of the nebulae and other information about it. Emission Nebulae Emission nebulae are so named because they emit their own light. This type of nebula forms when the intense radiation of stars within or near the nebula energizes the gas. A star’s ultraviolet radiation floods the gas with so much energy that it strips electrons from the nebula’s hydrogen atoms, a process called ionization. As the energized electrons revert from their higher-energy state to a lower-energy state by recombining with atoms, they emit energy in the form of light, causing the nebula’s gas to glow. A famous example of an emission nebula is the Orion Nebula, a huge, star-forming nebula in the constellation Orion. The Orion Nebula is home to a star cluster defined by four massive stars known as the Trapezium. These stars are only a few hundred thousand years old, about 15-30 times the mass of the Sun, and so hot and bright that they’re responsible for illuminating the entire Orion nebula. But thousands of additional, mostly young stars are embedded in the nebula. The most massive are 50 to 100 times the mass of our Sun. The radiation and solar winds of stars within emission nebulae carve and sculpt the nebula’s gas, creating caverns and pillars but also creating pressures on the gas clouds that can give rise to more starbirth. Reflection Nebulae Reflection nebulae reflect the light from nearby stars. The stars that illuminate them aren’t powerful enough to ionize the nebula’s gas, as with emission nebulae, but their light scatters through the gas and dust causing it to glow ― like a flashlight beam shining on mist in the dark. Because of the way light scatters when it hits the fine dust of the interstellar medium, these reflection nebulae are often bluish in color. A reflection nebula called NGC 1999 lies close to the famous Orion Nebula, about 1,500 light-years from Earth. The nebula is illuminated by a bright, recently formed star called V380 Orionis, and the gas and dust of the nebula is material left over from that star’s formation. A second well-known reflection nebula is illuminated by the Pleiades star cluster. Most nebulae around star clusters consist of material that the stars formed from. But the Pleiades shines on an independent cloud of gas and dust, drifting through the cluster at about 6.8 miles/second (11 km/s). Planetary Nebulae When astronomers looked at the sky through early telescopes, they found many indistinct, cloudy forms. They called such objects “nebulae,” Latin for clouds. Some of the fuzzy objects resembled planets, and these earned the name “planetary nebulae.” Today these nebulae keep the name, but we know they have nothing to do with planets. Planetary nebulae form during the death of low-mass to medium-mass stars. When such stars die, they expel their outer layers into space. These expanding shells of gas form a huge variety of unique shapes ― rings, hourglasses, rectangles, and more ― that show the complexity of stellar death. Astronomers are still studying how these intricate shapes form at the end of a star’s life. As the star casts off its outer layers, it leaves behind its core, which becomes a white dwarf star. White dwarf stars are objects with the approximate mass of the Sun but the size of Earth, making them one of the densest forms of matter in the universe after black holes and neutron stars. The white dwarf star’s ultraviolet radiation ionizes the gas of the planetary nebula and causes it to glow, just as stars do in emission nebulae. Our Sun is expected to form a planetary nebula at the end of its life. Supernova Remnants Not all stars die gently, exhaling their outer layers into space. Some explode in a supernova, flinging their contents into space at anywhere from 9,000 to 25,000 miles (15,000 to 40,000 kilometers) per second. When a star has a lot of mass ― at least five times that of our Sun ― or is part of a binary system in which a white dwarf star can gravitationally pull mass from a companion star, it can explode with the brightness of 10 billion Suns. Supernova remnants consist of material from the exploded star and any interstellar material it sweeps up in its path. The new debris from the explosion and material ejected by the star earlier in its life collide, heating up in the shock until it glows with x-rays. Supernova remnants’ glow can also be powered by the stellar wind of a pulsar ― a rapidly spinning neutron star created from the core of the exploded star. The pulsar emits electrons that interact with the magnetic field it produces, a process called synchrotron radiation, and emits X-rays, visible light and radio waves. Absorption Nebulae Absorption nebulae or dark nebulae are clouds of gas and dust that don’t emit or reflect light, but block light coming from behind them. These nebulae tend to contain large amounts of dust, which allows them to absorb visible light from stars or nebulae beyond them. Astronomer William Herschel, discussing these seemingly empty spots in the late 1700s, called them “a hole in the sky.” Included among absorption nebulae are objects like Bok globules, small, cold clouds of gas and dense cosmic dust. Some Bok globules have been found to have warm cores, which would be caused by star formation inside, and further observation has indicated the presence of multiple stars of varying ages, suggesting a slow, ongoing star formation process. The Crab Nebula is an example of a supernova remnant. The explosion that created it in the year 1054 was so bright that for weeks it could be seen even in the daytime sky, and it was recorded by astronomers across the world. The material from the star is still rushing outward at around 3 million mph (4.8 million kph). Hubble's Nebulae Gallery

  • Osiris-REx Mission | SPACELIA

    Osiris - REx Mission Remember that scene in "Armageddon" where Bruce Willis blows up a giant asteroid on a collision course with Earth? Thankfully, Bennu, a real near-Earth asteroid, isn't hurtling towards us quite that aggressively. But it is still a celestial wanderer with a thrilling story, and the audacious mission of the OSIRIS-REx spacecraft to unlock its secrets. Bennu: A Time Capsule From the Solar System's Dawn Imagine a colossal rock, bigger than the Empire State Building, older than the dinosaurs, and potentially holding the key to the origins of life on Earth. That's Bennu, a carbonaceous chondrite asteroid formed in the fiery crucible of the early solar system, some 4.5 billion years ago. Unlike its metallic or rocky siblings, Bennu is a carbonaceous treasure trove, its dark, diamond-like surface coated in organic molecules and minerals untouched for eons. Studying these pristine materials is like opening a time capsule, offering scientists a glimpse into the conditions that gave birth to our solar system and the potential for life beyond Earth. OSIRIS-REx: A Touch in the Void In 2016, NASA embarked on a mission as daring as it was groundbreaking: to rendezvous with Bennu, study its surface, and collect a precious sample. The OSIRIS-REx spacecraft, a technological marvel resembling a robotic octopus, embarked on a years-long journey, navigating the gravitational dance of the solar system and finally arriving at Bennu in 2018. For two years, OSIRIS-REx orbited Bennu like a celestial dance partner, mapping its surface in exquisite detail, revealing a world of craters, boulders, and even a mysterious dark plume erupting from its surface. Then, in October 2020, came the moment of truth: the Touch and Go Sample Acquisition Mechanism (TAGSAM) extended from the spacecraft, gently kissed Bennu's surface, and collected a handful of precious regolith (loose, rocky material) – Bennu's ancient secrets scooped into a cosmic treasure chest. Mission Accomplished: Bennu's Treasures Return to Earth After successfully completing its mission, OSIRIS-REx began its long journey back to Earth, carrying its priceless cargo. On September 24, 2023, the spacecraft hurtled through the atmosphere, releasing the sample capsule over the Utah desert. This precious payload, containing millions of Bennu particles, landed safely, marking a historic moment in space exploration. Bennu's Secrets Unlocked: A New Chapter in Science Scientists around the world are now eagerly analyzing the Bennu sample, hoping to answer some of humanity's most profound questions. What were the building blocks of the solar system? How did asteroids contribute to the formation of planets? Could Bennu's organic molecules hold the key to the origins of life? The answers lie within the grains of Bennu's regolith, waiting to be deciphered. This mission is not just about understanding the past; it's about preparing for the future. Studying Bennu's composition and trajectory could help us develop strategies to deflect asteroids in case they ever pose a threat to Earth. Bennu: More Than Just a Rock, a Story of Our Universe The story of Bennu is a testament to human ingenuity and our insatiable curiosity about the universe. It's a reminder that even in the vast emptiness of space, there are treasures to be found, stories to be told, and mysteries waiting to be unlocked. With every grain of Bennu analyzed, we expand our understanding of the cosmos and our place within it. Who knows, maybe one day, Bennu won't just be a celestial bullet dodged, but a key to unlocking the secrets of life itself. Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Zombie Planets Creation of Mind Loop STAR VFTS102 KEPLER-186f Proxima Centauri b TRAPPIST-1 Chandra X-Ray Observatory

  • Hubble's Star Clusters | SPACELIA

    Hubble's Star Clusters Billions of trillions of stars illuminate the galaxies of our universe. Each brilliant ball of hydrogen and helium is born within a cloud of gas and dust called a nebula. Deep within these clouds, knots can form, pulling in gas and dust until they become massive enough to collapse under their own gravitational attraction. Open Clusters Open clusters contain between a few dozen and a few thousand stars, all formed from the same initial cloud of gas and dust. The density of stars is low enough in these clusters that individual stars are visible with a telescope, or sometimes the unaided eye, giving them an “open” appearance. Most open clusters reside in the arms of spiral galaxies, and their stars are usually relatively young. Their shape is more irregular than spherical, with large amounts of gas between the stars. Over time, as these clusters rotate around a galaxy, gravitational disruptions from passing cosmic objects can cause the stars to disperse. The Milky Way is home to more than a thousand of these clusters, and even our Sun may have formed in an open cluster. Globular Clusters Embedded Clusters Globular clusters are much larger and denser than open clusters, containing several thousand to millions of stars all formed from a shared nebula. Unlike open clusters, the density of stars at their centers is so high that individual stars are hard to discern, even with powerful telescopes. Globular clusters lie on the dusty outskirts of galaxies and their stars are older than those in open clusters. In fact, globular clusters contain some of the oldest known stars in a galaxy. Because old stars tend to have a reddish glow, globular clusters generally appear redder than open clusters. The large number of stars in a relatively small area causes the shape of a globular cluster to appear spherical, as stars’ intense gravitational attraction pulls them together. These gravitational ties grant globular clusters more stability than open clusters, helping them keep their structure instead of breaking up over time. The Milky Way alone has over 150 globular clusters, and our nearest neighboring galaxy Andromeda has over 400. Embedded clusters are a precursor to open and globular clusters. As the youngest type of star cluster, they contain newly born and forming stars surrounded by cosmic gas and dust. As with open and globular clusters, all of the stars formed from the same initial nebula. Embedded clusters are likely the basic unit of star formation since a significant fraction of all stars form within them. Once star formation ends, embedded clusters resemble open clusters, but are often disrupted by passing objects due to their weaker gravitational bonds. The embedded phase typically lasts between 2-7 million years. Since embedded clusters are heavily obscured by dust, they are rarely observed in visible wavelengths of light. However, Hubble’s infrared instruments can detect the longer wavelengths of infrared light that aren’t as easily scattered by clouds of gas and dust. Hubble’s unique capabilities are essential for learning more about these young clusters.

  • Creation of Mind Loop | SPACELIA

    In this article, I will tell you a mindset that will shock you. After a lot of deep thinking and hard work, I am writing this article. This article is basically about our mind, what is it?, how is it?, what is the impact?, I will tell you all this further in the article, so reading the entire article will be very interesting and mind opening. Creation of Mind Loop This article is about mind and power of mind and totally different mindset which blows your mind. Introduction In this article, I will tell you a mindset that will shock you. After a lot of deep thinking and hard work, I am writing this article. This article is basically about our mind, what is it?, how is it?, what is the impact?, I will tell you all this further in the article, so reading the entire article will be very interesting and mind opening. And if you have not signed up, then do it quickly and subscribe so that you can be the first to get whatever new update comes, keep watching, and stay tuned. Unique Mindset I believe that whatever we are seeing or thinking is the work of our mind, it could just be our desire to think too far or the desire to get fame. And I am not only saying this, behind this also I have some strong point of view, which I will explain to you further. So first of all you clear this that what I want to say and what is my point, I am simply saying that we are making new theories in the universe and all these discoveries etc. are all just a mindset of ours. There is potential and all the theories that have been made are here. Understand that today I have given you a strong statement and someone else has modified and presented the same statement in a better way, this is the theory. I am not saying at all that all this is wrong, just till this article you should believe that all this is the power of our imagination. Like I got an idea today that this should also be there in the universe, then my mind will start thinking more about that thing which is not there, it will start creating itself and will force me to think or to believe that My opinion is absolutely correct. This thing cannot be understood by explaining it further but perhaps if you have had such an experience then you can understand it better. The simple thing is that it could just be an illusion or overthinking of the retard. You have understood all these things, but you will say that this is just your assumption, there is no proof, I will give you that too. You must have heard about the double slit experiment, it also has the same thing. And there is a theory in which scientists are saying that the world around us is just a binary code. When you focus on that thing then it comes into real state and back it becomes virtual, so let me tell you in a similar theory. What I have created may just be my idea or my overthinking and it is also possible that I may get trapped in the loop of my own theory. The name of this theory is - "Multiplicity of Thoughts", I have given a short explanation of it in the theory section, but I felt that this topic can be very interesting, hence I am writing a special article on it. So as you experience all these things, it creates a virtualness. You must decide once to think about any domain, think something or the other that you want to be this saree, if you keep thinking in your mind for 10-20 days, then you will also feel its effect. You must have heard about the Law of Attraction, so it also adds more depth to my theory. Scientist also proved that our soul can also travel in sleeping mode, so my conclusion of this theory comes from all these points. It was only till now and I know that you will have many questions, so you can ask me through personal mail or chat on the website. And make sure to subscribe to the website. Chat Section If you have any question ask me here.... Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Zombie Planets STAR VFTS102 KEPLER-186f Proxima Centauri b TRAPPIST-1

  • Articles | SPACELIA

    Research Papers Articles STAR VFTS102 We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotational velocity larger than 500 km s−1 and probably as large as 600 km s−1; as such it would appear to be the most rapidly rotating massive star currently identified. Its radial velocity differs by 40 km s−1 from the mean for 30 Doradus, suggesting that it is a runaway. View More Dark Energy In the late 1990s, astronomers found evidence that the expansion of the universe was not slowing down due to gravity as expected. Instead, the expansion speed was increasing. Something had to be powering this accelerating universe and, in part due to its unknown nature, this “something” was called dark energy. View More Zombie Planet Zombie planets, also known as "pulsar planets" or "planets around pulsars," are a fascinating and relatively rare astronomical phenomenon. View More The Dream Mission People must have had many dreams and those dreams would be very unique, but my dream is very unique. Today I will share with you this dream journey full of very interesting and adventures. In this dream of mine, I have done the complete mission of Mars and there are many twists in that too, which I will tell you further in this article. The article is The Dream Mission View More Creation of Mind Loop What we doing, what we experiencing, what we thinking is a creation of mind, and it's just a thoughts View More Answer of the Arecibo Message Whether real, mysterious, or fictional, these messages symbolize humanity’s deep yearning to connect with the unknown. The Arecibo Message demonstrates our technological advancements and hope for contact. The Chilbolton Message, regardless of its authenticity, underscores our fascination with the possibility of extraterrestrial communication. Meanwhile, Contact invites us to imagine the emotional and philosophical weight of finding we are not alone. View More Aditya - L1 View More

  • Parallel World Travel | SPACELIA

    We have heard a lot about time travel, it feels good to hear it but only in imagination and theories, we already know the rest of the reality, but today we have brought another theory in front of you which can happen in the past. There is a thesis based on the above but yes, you will definitely feel happy after reading it. Parallel World Travel We have heard a lot about time travel, it feels good to hear it but only in imagination and theories, we already know the rest of the reality, but today we have brought another theory in front of you which can happen in the past. There is a thesis based on the above but yes, you will definitely feel happy after reading it. Over View.... So let me give you an overview of this theory, in this we have tried to understand how time travel can happen in the past, because we all know that if we want, we can do it in the future, but time can never shrink. This is why it is impossible to travel in the past, but if we say that it is possible and that anti-reaction will increase your interest, then if we have to travel in time then it is possible only in a parallel universe. But we cannot understand the parallel world well yet, so we will have to create this theory accordingly, then the time travel that will happen will happen in the parallel world that we have created with our own thoughts. Because till now the parallel universe has remained only a thesis. So stick to this theory and the whole society will follow you. If you have any questions, you can tell me in the chat box below, I will definitely answer you. Lets begin the journey After starting this I want to ask you question Is time travel in past can be possible because if we do there would be so many paradoxes we have to face like Grandfather paradoxes and Butterfly Effect. If you don’t know about these then might be you think that what’s these..? Grandfather Paradox- Let’s suppose you have a time machine and you traveled in past And unfortunately because of You your Grandfather got killed in his childhood in the age of 6. Then what happen? Just think logically that if your Grandfather never married with any woman then your father will not birth in this world and if he don’t birth in this world You might be not birth in the world So in present if you don’t exists how did you traveled in past and killed your Grandfather? Tricky right… You can read About the Butterfly effect By yourself…. And cause of we are humans and we often made mistakes we can say that there will be a huge chance that we messed up past.. So with this, This is confirm that we cannot travel in past. Even not in the theory. But we are humans and we are free to think and assume don’t we? Of course many scientists claim that past time travel isn’t possible. So my theory is What if we do travel in past and change it but in result nothing will change in our world cause of our mistake or action, Note that I said in our world. As we know we are not alone in the universe there can be a lot of creature like us or advance from us or lower from us in different sector. And there would be a chance that there would be an parallel universe like us. Parallel Universe is a universe which had many similarities and many differences too. This is a hypothesis universe but it can be true. My theory is a mixture of parallel universe and time travel. There are huge chance that we humans will be able to travel in past but the problem will be we can only observe them but can’t change anything if we dare and try to change anything then The past that we traveled will become a parallel universe and continuous it’s own different future than us. In short if we do the grandfather paradox there then even if we kill the grandfather we will be secure but in that died grandfather universe we actually never be able to exists there. It might be the reason why the party of the time travelers by Stephen hawking was empty cause maybe the travelers don’t want to change the universe. With this almost every paradox can be solved. And whenever we felt Déjà vu there would be the cause of we already felt it on parallel universe and we are connected by that ourselves from that universe to this Universe.. Every action has an appropriate reaction We all know that every action has an appropriate reaction, so you must be thinking that you have said that time travel will happen in the past but not in our parallel universe, but will it have any impact in our universe? , Can it have any opposing impact? Well, we can think something now, but because we have given you this universe, it must have been created by imagination and if we do anything in it, we will not see any effect on the present. We will not get it, that is a different matter that this is just our thought, so maybe there can be some reaction. You can tell in the chat box given below whether you have any idea whether this could be a reaction? Chat Section If you have any question ask me here....

  • KEPLER-186f | SPACELIA

    Kepler-186f is an Earth-sized exoplanet located 500 light-years away in the constellation Cygnus. It orbits a red dwarf star, Kepler-186, within its habitable zone, where conditions might allow liquid water to exist. This discovery sparked interest in the search for potentially habitable exoplanets and raised questions about the possibility of extraterrestrial life beyond our solar system. However, limited data about its atmosphere and surface make it challenging to assess its true habitability. KEPLER-186f Kepler-186f is an Earth-sized exoplanet located 500 light-years away in the constellation Cygnus. It orbits a red dwarf star, Kepler-186, within its habitable zone, where conditions might allow liquid water to exist. This discovery sparked interest in the search for potentially habitable exoplanets and raised questions about the possibility of extraterrestrial life beyond our solar system. However, limited data about its atmosphere and surface make it challenging to assess its true habitability. 1. Characteristics of Kepler-186f: Size: Kepler-186f is considered an Earth-sized exoplanet, with an estimated radius about 1.1 times that of Earth. This makes it one of the few exoplanets discovered at the time that was close in size to our own planet. Parent Star: Kepler-186f orbits a red dwarf star known as Kepler-186, which is cooler and smaller than our Sun. Kepler-186 is classified as an M-dwarf star. Orbit: Kepler-186f is in a relatively tight orbit around its host star, completing one orbit approximately every 130 Earth days. It receives about a third of the energy from its star compared to Earth's energy from the Sun. Habitable Zone: One of the most intriguing aspects of Kepler-186f is its location within the habitable zone (Goldilocks zone) of its star. The habitable zone is the region around a star where conditions might be suitable for liquid water to exist on the planet's surface, which is a key factor for the potential development of life as we know it. 2. Atmosphere of Kepler-186f: Information about the specific composition and characteristics of Kepler-186f's atmosphere is not currently known. Detecting and analyzing the atmospheres of exoplanets, especially those as distant as Kepler-186f, is a challenging task that often requires advanced telescopes and instruments. Detailed studies of an exoplanet's atmosphere can provide important insights into its potential habitability. 3. Potential for Extraterrestrial Life: Kepler-186f's location within the habitable zone of its star makes it an intriguing candidate for the potential existence of extraterrestrial life. The habitable zone represents the region where conditions might be right for liquid water to exist on the planet's surface, which is a crucial ingredient for life as we know it. However, the presence of liquid water alone does not guarantee the existence of life. Other factors, such as the composition of the planet's atmosphere, the presence of essential nutrients, geological activity, and the stability of the climate, also play vital roles in determining habitability. Detecting signs of life on Kepler-186f or any exoplanet is extremely challenging and would likely require advanced telescopes capable of analyzing the planet's atmosphere for biomarkers (e.g., oxygen, methane) or other potential signs of biological activity. Kepler-186f and Earth have some similarities, such as their Earth-sized classification and the fact that Kepler-186f is located within the habitable zone of its star. However, they also have several key differences. Here's a comparison between Kepler-186f and Earth: 1. Size and Mass: Earth: Earth is approximately 12,742 kilometers (7,918 miles) in diameter and has a mass of about 5.972 × 10^24 kilograms. Kepler-186f: Kepler-186f is considered an Earth-sized exoplanet, with an estimated radius about 1.1 times that of Earth. Its exact mass is not precisely known but is believed to be greater than Earth. 2. Parent Star and Orbit: Earth: Earth orbits the Sun, a G-type main-sequence star (G2V), at an average distance of about 149.6 million kilometers (93 million miles). It completes one orbit around the Sun in approximately 365.25 days. Kepler-186f: Kepler-186f orbits a red dwarf star known as Kepler-186, which is cooler and smaller than our Sun. Its orbit around Kepler-186 takes approximately 130 Earth days. 3. Habitable Zone: Earth: Earth is located within the habitable zone of the Sun, where conditions for liquid water are ideal for the existence of life. Kepler-186f: Kepler-186f is also located within the habitable zone of its star, Kepler-186. This means that, theoretically, it could have conditions suitable for liquid water to exist on its surface. 4. Atmosphere: Earth: Earth has a diverse and life-sustaining atmosphere composed primarily of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases. The atmosphere plays a critical role in regulating temperature and supporting life. Kepler-186f: The specific composition and characteristics of Kepler-186f's atmosphere are not currently known. Detailed studies are needed to determine the presence and properties of its atmosphere. 5. Surface Conditions: Earth: Earth has a variety of surface conditions, including continents, oceans, and various climate zones. It supports a wide range of life forms and ecosystems. Kepler-186f: The specific surface conditions of Kepler-186f, such as the presence of oceans, continents, or any geological activity, are not known due to limited observational data. 6. Potential for Extraterrestrial Life: Earth: Earth is known to host a diverse array of life, from microorganisms to complex multicellular organisms, including humans. Kepler-186f: While it is located within the habitable zone and is considered an interesting candidate for further study, the presence of extraterrestrial life on Kepler-186f is purely speculative at this point. It is one of the exoplanets that has garnered attention for its potential habitability. Other Articles...... Dark Energy Multiness of Thoughts The Dream Mission Creation of Mind Loop STAR VFTS102 KEPLER-452b Proxima Centauri b TRAPPIST-1

  • Nasa's Time Line | SPACELIA

    Journey of the worlds biggest aerospace organisation NASA, Timeline of NASA. Time Line

  • Profile | SPACELIA

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  • Kepler's Exoplanets

    Exoplanets that are discovered by the Kepler Telescope Kepler's Exoplanets

  • Space Discoveries of 2021 | SPACELIA

    2021 Space Discoveries Amateur astronomer discovers a new moon around Jupiter A previously-unknown moon has been detected around the largest planet in the solar system. Jupiter is a giant, so it gravitationally attracts many objects into its vicinity. Earth has one major moon, Mars has two: but Jupiter boasts at least 79 moons, and there may be dozens or hundreds more of them that astronomers have yet to identify. The latest discovery was made by amateur astronomer Kai Ly, who found evidence of this Jovian moon in a data set from 2003 that had been collected by researchers using the 3.6-meter Canada-France-Hawaii Telescope (CFHT) on Mauna Kea. Ly they confirmed the moon was likely bound to Jupiter's gravity using data from another telescope called Subaru. The new moon, called EJc0061, belongs to the Carme group of Jovian moons. They orbit in the opposite direction of Jupiter's rotation at an extreme tilt relative to Jupiter's orbital plane. NASA will return to Venus this decade Mars is a popular target for space agencies, but Earth's other neighbor has been garnering more attention recently. In 2020, researchers announced that they had detected traces of phosphine in Venus' atmosphere. It is a possible biosignature gas, and the news certainly reawakened interest in the planet. In early June 2021, NASA announced it will launch two missions to Venus by 2030. One mission, called DAVINCI+ (short for Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging, Plus) will descend through the planet's atmosphere to learn about how it has changed over time. The other mission, VERITAS (Venus Emissivity, Radio Science, InSAR, Topography, and Spectroscopy) will attempt to map the planet's terrain from orbit like never before. Venus has been visited by robotic probes, but NASA has not launched a dedicated mission to the planet since 1989. The interest in Martian exploration may be one reason why Venus has been neglected in recent decades, but the second planet from the sun is also a challenging place to study. Although it may have once been a balmy world with oceans and rivers, a runaway greenhouse effect took hold of Venus around 700 million years ago and now the planet's surface is hot enough to melt lead. The sun is reawakening The sun was experiencing a quiet time in its roughly decade-long cycle, but it is now exiting that phase. The sun has had very little activity in recent years, but the star's surface is now erupting in powerful events that spew out charged particles towards Earth. In early November, for instance, a series of solar outbursts triggered a large geomagnetic storm on our planet. This eruption is known as a coronal mass ejection, or CME. It's essentially a billion-ton cloud of solar material with magnetic fields, and when this bubble pops, it blasts a stream of energetic particles out into the solar system. If this material heads in the direction of Earth, it interacts with our planet's own magnetic field and causes disturbances. These can include ethereal displays of auroras near Earth's poles, but can also include satellite disruptions and energy losses. James Webb Space Telescope flies into space A whole new era of space science began on Christmas Day 2021 with the successful launch of the world's next major telescope. NASA, the European Space Agency and the Canadian Space Agency are collaborating on the $10 billion James Webb Space Telescope (JWST), a project more than three decades in the making. Space telescopes take a long time to plan and assemble: The vision for this particular spacecraft began before its predecessor, the Hubble Space Telescope, had even launched into Earth orbit. Whereas Hubble orbits a few hundred miles from Earth's surface, JWST is heading to an observational perch located about a million miles from our planet. The telescope began its journey towards this spot, called the Earth-sun Lagrange Point 2 (L2), on Dec. 25, 2021 at 7:20 a.m. EST (1220 GMT) when an Ariane 5 rocket launched the precious payload from Europe's Spaceport in Kourou, French Guiana. The telescope will help astronomers answer questions about the evolution of the universe and provide a deeper understanding about the objects found in our very own solar system. Event Horizon Telescope takes high-resolution image of black hole jet In July 2021, the novel project behind the world's first photo of a black hole published an image of a powerful jet blasting off from one of these supermassive objects. The Event Horizon Telescope (EHT) is a global collaboration of eight observatories that work together to create one Earth-sized telescope. The end result is a resolution that is 16 times sharper and an image that is 10 times more accurate than what was possible before. Scientists used EHT's incredible abilities to observe a powerful jet being ejected by the supermassive black hole at the center of the Centaurus A galaxy, one of the brightest objects in the night sky. The galaxy's black hole is so large that it has the mass of 55 million suns. Scientists spot the closest-known black hole to Earth Just 1,500 light-years from Earth lies the closest-known black hole to Earth, now called "The Unicorn ." Tiny black holes are hard to spot, but scientists managed to find this one when they noticed strange behavior from its companion star, a red giant. Researchers observed its light shifting in intensity, which suggested to them that another object was tugging on the star. This black hole is super-lightweight at just three solar masses. Its location in the constellation Monoceros ("the unicorn") and its rarity have inspired this black hole's name. Earth's second 'moon' flies off into space An object dropped into Earth's orbit like a second moon, and this year, it made its final close approach of our planet. It is classified as a "minimoon," or temporary satellite. But it's no stray space rock — the object, known as 2020 SO, is a leftover fragment of a 1960s rocket booster from the American Surveyor moon missions. On Feb. 2, 2021, 2020 SO reached 58% of the way between Earth and the moon, roughly 140,000 miles (220,000 kilometers) from our planet. It was the minimoon's final approach, but not its closest trip to Earth. It achieved its shortest distance to our planet a few months prior, on Dec. 1, 2020. It has since drifted off into space and away from Earth's orbit, never to return. Parker Solar Probe travels through the sun's atmosphere This year, NASA's sun-kissing spacecraft swam within a structure that's only visible during total solar eclipses and was able to measure exactly where the star's "point of no return" is located. The Parker Solar Probe has been zooming through the inner solar system to make close approaches to the sun for the past three years, and it is designed to help scientists learn about what creates the solar wind, a sea of charged particles that flow out of the sun and can affect Earth in many ways. The spacecraft stepped into the sun's outer atmosphere, known as the corona , during its eight solar flyby. The April 28 maneuver supplied the data that confirmed the exact location of the Alfvén critical surface: the point where the solar wind flows away from the sun, never to return. The probe managed to get as low as 15 solar radii, or 8.1 million miles (13 million km) from the sun's surface. It was there that it passed through a huge structure called a pseudostreamer, which can be seen from Earth when the moon blocks the light from the sun's disk during a solar eclipse . In a statement about the discovery, NASA officials described that part of the trip as "flying into the eye of a storm." Perseverance begins studying rocks on Mars Last but not least, this year marked the arrival of NASA's Perseverance rover on Mars. The mission has been working hard to find traces of ancient Martian life since it reached the Red Planet on Feb. 18, 2021. Engineers have equipped Perseverance with powerful cameras to help the mission team decide what rocks are worth investigating. One of Perseverance's most charming findings has been "Harbor Seal Rock ," a curiously-shaped feature that was probably carved out by the Martian wind over many years. Perseverance has also obtained several rock samples this year, which will be collected by the space agency for analysis at some point in the future. Perseverance is taking its observations from the 28-mile-wide (45 kilometers) Jezero Crater, which was home to a river delta and a deep lake billions of years ago.

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