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This Chandra X-ray Observatory image shows the debris of a massive star explosion in the Large Magellanic Cloud, a small galaxy about 160,000 light years from Earth. The supernova remnant (SNR) shown here, N132D, is the brightest in the Magellanic clouds, and belongs to a rare class of oxygen-rich remnants. Most of the oxygen that we breathe on Earth is thought to have come from explosions similar to this one. picked by AutumnLotus 5 months ago tags oxygen factory galaxy chandra star explosion |
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An explosive star within our galaxy is showing signs of an impending eruption, at least in a cosmic time frame, and has for quite some time. From 1838 to 1858, the star called Eta Carinae brightened to rival the light of Sirius, the brightest star in the sky, and then faded to a dim star. Since 1940 it has been brightening again, and scientists think Eta Carinae will detonate in 10,000 to 20,000 y... read full post picked by AutumnLotus 8 months ago 0 comments edit related share science |
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In a distant galaxy, a star orbiting a massive central black hole strays too close to the insatiable giant and is torn apart. But before it can be devoured, the star lets out one last scream in a flare of light that slowly echoes across the galaxy. Astronomers on Earth pick up this faint call and use it to map the nucleus of the galaxy from which it emanated. picked by AutumnLotus 4 months ago 0 comments edit related share science |
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A colossal cloud of gas is racing toward a collision with our galaxy, and when it hits, the crash could trigger an intense burst of star formation. picked by AutumnLotus 7 months ago 4 comments edit related share science |
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A furious rate of star formation discovered in a distant galaxy shows that galaxies in the early universe developed either much faster or in a different way from what astronomers have thought. The galaxy is forming the equivalent of 4,000 Suns a year. This is a thousand times more violent than our own Milky Way galaxy. picked by AutumnLotus 8 months ago 0 comments edit related share plime.com |
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Astronomers believe they may have discovered the brightest star in the Milky Way amid a swirling cloud of colourful stellar dust. 0 comments edit related share scienceNicknamed the 'Peony nebula star', the celestial body blazes with the light of 3.2million suns in the centre of our galaxy. picked by AutumnLotus 1 month ago |
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Astronomers recently captured a supernova's blinding flash "echoing" off dust 400 light-years from the detonation site in the Large Magellanic Cloud — which means Earthly observers may have seen the original blast 400 years ago. picked by AutumnLotus 4 months ago 0 comments edit related share science |
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The image from NASA's Chandra X-ray Observatory shows the first double-sided X-ray jet ever detected from a young star. A similar jet may have been launched from the young Sun and could have had a significant impact on the early solar system. picked by AutumnLotus 4 months ago 0 comments edit related share science |
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The Hubble Space Telescope has found a large galaxy 10.6 billion light-years away from Earth that is stuffing itself with smaller galaxies caught like flies in a web of gravity. The galaxy is so far away that astronomers are seeing it as it looked in the early formative years of the Universe, only 2 billion years after the Big Bang. picked by 2manyusernames 2 years ago 2 comments edit related share science |
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A dramatic new Chandra image of the nearby galaxy Centaurus A provides one of the best views to date of the effects of an active supermassive black hole. Opposing jets of high-energy particles can be seen extending to the outer reaches of the galaxy, and numerous smaller black holes in binary star systems are also visible. picked by AutumnLotus 7 months ago 0 comments edit related share science |
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Supernova Remnant N49 is, in optical light, the brightest supernova remnant in the Large Magellanic Cloud, a nearby satellite galaxy of our own Milky Way Galaxy. To visible-light observatories, N49 appears to have a unique, lopsided filamentary structure which has long puzzled scientists because most supernova remnants appear spherical in shape. picked by 2manyusernames 2 years ago 0 comments edit related share science |
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Astronomers studying a nearby galaxy have spied a rare type of star system -- one that contains a black hole that suddenly began glowing brightly with X-rays. 0 comments edit related share scienceThough this type of star system is supposed to be rare, it's the second such system discovered in that galaxy, called Centaurus A. picked by AutumnLotus 7 months ago |
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A tiny star recently unleashed what is considered the brightest burst of light ever seen in the universe from a normal star. Shining with only 1 percent of the sun's light and boasting just a third of the sun's mass, this run-of-the-mill star previously was nothing to write home about. picked by AutumnLotus 3 months ago 0 comments edit related share science |
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Geologists have uncovered evidence of when Earth may have first supported an oxygen-rich atmosphere similar to the one we breathe today. The study suggests that upheavals in the earth’s crust initiated a kind of reverse-greenhouse effect 500 million years ago that cooled the world’s oceans, spawned giant plankton blooms, and sent a burst of oxygen into the atmosphere. picked by AutumnLotus 10 months ago 4 comments edit related share science |
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A mineral that acts like a sponge beneath Earth's surface stores more oxygen than expected, keeping our planet from becoming dry and inhospitable like Mars. The key to the abundant oxygen storage is the mineral majorite, which exists deep below Earth's surface in the mantle. Without the oxygen stockpile, Earth would probably be a barren planet hostile to life. picked by AutumnLotus 11 months ago 4 comments edit related share science |
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The Gemini South Multi-Object Spectograph (GMOS) recently captured a dramatic image of a vast cloud complex named DEM L316 located in the Large Magellanic Cloud. The peanut-shaped nebula appears to be a single object, but the latest research indicates that it is really comprised of two distinct gas and dust clouds formed by different types of supernova explosions. picked by AutumnLotus 7 months ago 0 comments edit related share science |
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The latest image from the NASA/ESA Hubble Space Telescope reveals a sharp view of the spiral galaxy NGC 2397. This image also shows a rare Hubble view of the early stages of a supernova - SN 2006bc, discovered in March 2006. picked by AutumnLotus 5 months ago 0 comments edit related share science |
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Through some of the very first scientific observations with the brand-new Large Binocular Telescope (LBT) in Arizona, astronomers has found that a recently discovered tiny companion galaxy to our Milky Way, named the Hercules Dwarf Galaxy, has truly exceptional properties: while basically all of its known peers in the realm of these tiny dwarf galaxies are rather round, this galaxy at a distance o... read full post picked by AutumnLotus 11 months ago 2 comments edit related share plime.com |
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About 140 years ago, our time, a stellar explosion lit up our galaxy with a blinding flash of light, sending out powerful shock waves to boot. Now, astronomers have spotted the youthful remains from the explosion. picked by AutumnLotus 3 months ago 0 comments edit related share science |
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A spectacular new image shows how complex a star's afterlife can be. By studying the details of this image made from a long observation by NASA's Chandra X-ray Observatory, astronomers can better understand how some stars die and disperse elements like oxygen into the next generation of stars and planets. Larger image. picked by AutumnLotus 10 months ago 1 comments edit related share plime.com |
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Newborn stars shine like celestial sparklers in a new portrait of the nearby Triangulum Galaxy – the most detailed ultraviolet image of a galaxy ever taken. Astronomers will use the image, taken by NASA's Swift telescope, to create an "age map" of the galaxy's components to understand how galaxies evolve over time. picked by AutumnLotus 6 months ago 2 comments edit related share science |