Astronomical theories have thus far held that a massive star's life cycle is something that is clearly determined ever since its birth, and that there is nothing that can go amiss in the fairly simple process. Talking about celestial bodies some 100 times bigger and up to a million times brighter than the Sun, a... |
23 March 2009 04:04 GMT |
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Supermassive black holes, weighing several billion times more than the Sun, are widely believed to have begun their lives as smaller black holes that fed on the large masses of gas surrounding them. Computer models however tell another story. Small black holes cannot feed and grow rapidly to super-size because there&... |
20 May 2008 03:32 GMT |
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By using the Chandra X-ray Space Observatory and the XMM-Newton Space Observatory, astronomers were able to observe a light echo originating from a supernova explosion in the Large Magellanic Cloud, which was first observable from Earth nearly 400 years ago. The supernova remnant, dubbed SNR 0509-67.5, lies 160,000 l... |
21 April 2008 08:27 GMT |
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Supernova SN 2007on was discovered last year in the location of what previously was a binary system, composed of at least one white dwarf and another stellar companion, most likely a regular slightly more massive star or possibly a second white dwarf. It is now known that the supernova is a Type Ia, meaning it was de... |
14 February 2008 03:46 GMT |
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