in theory, it can last anywhere from a millisecond to billions of years. there are black holes that are so old they might have been created at the beginning of the universe.
If they are more massive than about the mass of the planet Mercury, forever; if not then a billionth of a billionth of a second - they bleed off hawking radiation till nothing is left.
They definitely won't disappear tomorrow. Black holes are quite stable, and - for the case of known black holes - will last much longer than the current age of the Universe.
Black holes have been detected (or at least evidence of their activity) White holes have never been observed, and remain theoretical for the time being.
Black holes do not die but they can evaporate.
Black holes are round because they are formed from dead stars and white holes. As you can guess a star is a sphere and that is why black holes are round.
Yes. They get sucked into black holes all the time!
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They will remain as black holes for a long, long time.
Science at this time can find no end to black holes. They seem to last forever.
They definitely won't disappear tomorrow. Black holes are quite stable, and - for the case of known black holes - will last much longer than the current age of the Universe.
Black holes have been detected (or at least evidence of their activity) White holes have never been observed, and remain theoretical for the time being.
Black holes did exist in 1999, and long before that. While black holes cannot be observed directly, they have been hinted at having existed by Einstein. The first real recording of the side effects of a Black hole was in 1971.
Walter Sullivan has written: 'The long, long love' 'Black Holes' -- subject(s): Black holes (Astronomy), Trous noirs (Astronomie) 'The War the Women Lived'
Black holes are sort of the final stage of stellar evolution; they don't form much else. Two black holes may merge to form a larger one, and after a very, very long time, they will evaporate.
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
They're still called black holes. A black hole remains defined as a black hole as long as it absorb everything near them, both energy and matter, including gas.
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No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.No. It certainly has black holes, but it has other things as well.