Einstein's general theory of relativity (published in 1916) predicts black holes. Then a few months after Karl Schwarzschild gave a solution for the gravitational field of a point mass and a spherical mass, that a black hole could theoretically exist. Perhaps the first object to be generally recognized as a black hole is the X-ray binary star Cygnus X-1. Its effect on its companion star suggested as early as 1971 that it must be a compact object with a mass too high for it to be a neutron star. How the Black hole theory came from general relativity is that theoretically if a stars gravity is too strong it would implode/collapse into itself causing a black hole. Einstein determined that this is impossible.
Black Holes are purely theoretical and for them to exist goes against basic physics. Nobody has ever seen black hole. If a stars gravity was to strong it would explode and not form a black hole according to basic laws and physics.
Black holes have a long history; John Michel figured out some 200 years ago that something like "black holes" should exist, if it were possible to concentrate matter into a tiny space. The modern theory of black holes is somewhat different from Michel's arguments, though. Specifically, the modern theory of black holes is based on the General Theory of Relativity.
The actual discovery was more recent, and it took a while to recognize the X-rays observed, as black holes.
I suggst you read about "black holes" in Wikipedia, for example, to get a more thorough description of the theory - and also of the history.
astronomist scientists or astronomists
stellar black holes were stars (these are large)primordial black holes were pieces of the big bang (these are microscopic)
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.
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.
There are no black holes in our solar system
They are called "black holes".
Yes. They get sucked into black holes all the time!
The most massive stars will die as black holes.
Schwarzschild black holes. Named after the scientist who proved mathematically black holes can exist.
Yes black holes are moving but they have no sense of direction..
Ergoregion
Black holes were stars that were so massive that they collapsed on itself. The gravity in black holes is infinite and more you get closer to it, more time gets slower. Black holes suck all matter that is too close. Even light can't escape Black holes.