Quote:
Originally Posted by JohnBStone
Only very large stars can collapse into black holes when they supernova, and even they often avoid the fate by throwing off so much matter in the supernova that they are no longer masive enough to gravitationally collapse.
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Right. And even before they collapse, very large stars are 'burning' so hot, their outward radiation pressure is so extreme that it is constantly blowing a huge amount of the star's mass out into space.
[Edited to add: I was a little quick to agree with a generally correct statement by JohnB so I could make my point about stars with very high radiation pressure. As Tim really clarifies at Post #7, a collapse into a black hole does not produce a supernova. ]
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Last edited by Cougar; 03-July-2009 at 08:46 PM..
Reason: Clarity
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