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Black holes can't be seen, but they're detected by noting their effects on stars or gas around them. They're so dense that nothing, including light, escapes them. Only two classes of black holes are firmly established to exist: Stellar black holes typically weigh a few times the mass of the sun; supermassive black holes are loaded with millions or billions of solar masses. picked by AutumnLotus 8 months ago tags mid-size black hole black holes stellar supermassive Omega Centauri |
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Astronomers have used two different telescopes simultaneously to study the violent flares from the supermassive black hole in the centre of the Milky Way. They have detected outbursts from this region, known as Sagittarius A*, which reveal material being stretched out as it orbits in the intense gravity close to the central black hole. picked by AutumnLotus 2 weeks ago 0 comments edit related share science |
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Spitzer Space Telescopes show that the vicinities around the black holes could be backing up with excess matter - the black holes just can’t consume it fast enough to clear the space. When this happens, the matter heats up, and releases a tremendous amount of energy. picked by 2manyusernames 2 years ago 0 comments edit related share plime.com |
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Astronomers have found an enormous hole in the Universe, nearly a billion light-years across, empty of both normal matter such as stars, galaxies, and gas, and the mysterious, unseen "dark matter." While earlier studies have shown holes, or voids, in the large-scale structure of the Universe, this new discovery dwarfs them all. picked by 2manyusernames 1 year ago 3 comments edit related share plime.com |
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Like cosmic bubble makers, some black holes spew out behemoth blobs of hot gas into their home galaxies. 1 comments edit related share scienceThe bubbles ultimately pop, and their gassy contents keep both the black hole and its galaxy from ballooning to mega sizes, a new study finds. picked by AutumnLotus 6 days ago |
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New research shows that black holes are not the ultimate destroyers that are often portrayed in popular culture. Instead, warm gas escaping from the clutches of enormous black holes could be one source of the chemical elements that make life possible. picked by dork 2 years ago 1 comments edit related share plime.com |
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The incredible amount of energy given off across the entire electromagnetic spectrum during a gamma-ray burst is what Jonathan Grindlay of the Harvard-Smithsonian Center for Astrophysics calls "the birth pangs of a black hole. This is the scream." picked by AutumnLotus 3 months ago 3 comments edit related share science |
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Astronomers can't see black holes. And they definitely can't go out and grab a piece of one to measure its mass. 0 comments edit related share plime.comSo how do they weigh them? picked by AutumnLotus 2 years ago |
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Supermassive black holes can produce powerful winds that shape a galaxy and determine their own growth. The RIT team has, for the first time, observed the vertical launch of rotating winds from glowing disks of gas, known as accretion disks, surrounding supermassive black holes in the centers of galaxies. picked by AutumnLotus 1 year ago 2 comments edit related share plime.com |
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A sleep-deprived office worker accidentally discovers a black hole and then greed gets the better of him... 2 comments edit related share entertainmentNice short movie picked by wildminou 2 weeks ago |
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New research shows that black holes are not the ultimate destroyers that are often portrayed in popular culture. Instead, warm gas escaping from the clutches of enormous black holes could be one source of the chemical elements that make life possible. picked by AutumnLotus 2 years ago 0 comments edit related share science |
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Black holes can be secretive about their past, but now there may be an easy way to tell if a monster black hole was once a pair that got cosy and fused together. picked by AutumnLotus 7 months ago 0 comments edit related share science |
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According to two astrophysicists from Paris Observatory, the fate of stars that venture too close to massive black holes could be even more violent than previously believed. Not only are they crushed by the black hole's huge gravity, but the process can also trigger a nuclear explosion that tears the star apart from within. picked by AutumnLotus 7 months ago 4 comments edit related share science |
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This Black Google Portal is easier on your eyes and saves energy. All search results are displayed on google.com with a black background and light text. picked by plimytheelder 2 years ago 2 comments edit related share plime.com |
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Researchers from Duke University and the University of Cambridge think there is a way to determine whether some black holes are not actually black. Finding such an unmasked form of what physicists term a singularity "would shock the foundation of general relativity." picked by AutumnLotus 1 year ago 4 comments edit related share plime.com |
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Scientists could generate a black hole as often as every second when the world's most powerful particle accelerator comes online in 2007. picked by afeldman 2 years ago 5 comments edit related share science |
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A stellar black hole much more massive than theory predicts is possible has astronomers puzzled. The newly weighed black hole is 16 solar masses. It orbits a companion star in the spiral galaxy Messier 33, located 2.7 million light-years from Earth. Together they make up the system known as M33 X-7. picked by AutumnLotus 1 year ago 0 comments edit related share plime.com |
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A Humane Society in Idaho has banned adoptions of black cats, fearing they might be mistreated, or worse, on Halloween. picked by Caremel 2 years ago 4 comments edit related share weird |
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Right now, the colour black, or “Kuro” in Japanese, is surprisingly enjoying widespread popularity in Japan. A trend so strong that we could even find an oh-so-hip black toilet paper. picked by muppet 1 year ago 8 comments edit related share plime.com |
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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 11 months ago 0 comments edit related share science |
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The Black Keys are a blues band out of Akron, OH who have a distinctly gritty sound that is refreshing in todays over-produced industry. picked by donteatpoop 2 years ago 1 comments edit related share plime.com |