When a star collapses all the gravity that it created also collapses creating a wrinkle, fold, hole (hard to explain) in the fabric of space time.
Probably stellar mass black holes
The energy that comes from black holes is called Hawking radiation.
Black holes are formed by super massive stars when they collapse. Less massive stars will form neutron stars. Therefore, the original size and mass of the star will determine if a black hole will be created when the star collapses.
neutron stars and black holes
Yes it is theorized that black holes constantly emit radiation in the form of thermal energy (Heat) also called Hawking radiation and black-body radiation.
no because black holes can only form through supernovas.
The black holes from Gamma ray usually burst because of their energetic form.
Probably stellar mass black holes
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.
Most black holes form when massive stars exhaust their fuel and their cores collapse. There are also supermassive black holes at the centers of most galaxies. Scientists are not sure how supermassive black holes form.
The energy that comes from black holes is called Hawking radiation.
Most black holes are believed to form when very massive stars die.
Black holes are outside the confines of both the Earth and the Solar System, the passing of our year does not affect when they form.
Obstructions, black holes, etc.
Yes. When the most massive stars die, their cores collapse to form black holes.
If five black holes came together they would merge to form a single black hole with a mass equal to the sum of the masses of the five original black holes.
Mostly the center of the galaxy.