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A star that stops producing radiation, with a mass about 2-3 times the mass of our Sun (mass remaining after a possible supernova explosion), or more, can become a black hole.
There is also some speculation about miniature black holes ("primordial black holes"), with much less mass than that, which might have formed during the Big Bang, because of the enormous density that existed at that time. However, so far there is no evidence that such black holes actually exist.
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How were black holes created?
Black holes are created from something extremely dense in a small space. The most common cause is a supernova.
Why small Black Holes?
You may have caries. Consult a dentist.
What is so small and massive that the gravity does not even let light escape?
Black holes - and not all are small.
How large are black holes?
Theoretically they can be as large as a small star or as large as a galaxy
What is a black holes atmosphere made out of?
Black holes have no atmosphere, they are entirely empty except for a singularity at the very center containing the entire mass of the black hole in one infinitesimally small point (or if the black hole is spinning, one circular spinning ring of infinitesimally small thickness).
Is the lhc going to make a black hole?
One of the LHC's objectives is to create micro black holes. These holes are so small however, they evaporate into radiation almost immediately.
What were black holes before they turned into black holes?
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
Is dark matter excreted from black holes?
No. Black holes do not give off anything other than small amounts of Hawking radiation. That note aside, scientists do not know what dark matter is or what its origin is.
What are black holes and are they real?
Black holes do exist. They are giant singularities (infinitely small compressed matter) that such pretty much everything in. They have been proven to exist and they are a very talked about subject in the field of astrophysics.
Is the universe made of black holes?
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.
Can black holes dies?
Black holes do not die but they can evaporate.
Why are black holes round?
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.
