how long does a black hole live?
2006-09-12 23:22:39 · 5 answers · asked by MR T 2 in Science & Mathematics ➔ Other - Science
That all depends. It used to be thought that nothing can ever escape a black hole. If that were the case, then they would last forever.
However, Stephen Hawking showed that thanks to quantum mechanics, it is indeed possible for black holes to decay. How long that takes would obviously depend on the size of the black hole. We know black holes come in anything from star-sized to galaxy-sized, and they can presumably be smaller than star-sized too (after all, if they decay, they can eventually vanish).
As to how long it takes for a black hole of a given size to decay, I don't know. I don't claim to understand quantum mechanics.
2006-09-12 23:46:53 · answer #1 · answered by Bramblyspam 7 · 0⤊ 0⤋
Before entirely evaporated, it takes almost equal time of its build up from tiny size to a massive.
2006-09-12 23:48:13 · answer #2 · answered by Lutfor 3 · 0⤊ 0⤋
bout 10 yrs
2006-09-12 23:31:37 · answer #3 · answered by Anonymous · 0⤊ 0⤋
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2014-07-24 17:35:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Forever. At least mine does and I have had it for ages.
2006-09-12 23:31:57 · answer #5 · answered by Anonymous · 0⤊ 0⤋