What are Some Different Types of Black Holes?
Diamonds are not forever. They may be very hard, but are quite rigid and will shatter like glass if hit hard enough. At high temperatures they can be melted, and jewelers regularly use steel tools to cut diamond. The closest that any compact physical object comes to being eternal is the black hole. The remnant of the collapse of a giant star, black holes are basically untouchable. They have the same mass as their parent star, shoved into an area that is usually treated as a zero-dimensional point. Stars can die through supernovae or collisions with other stars – black holes cannot. Black holes very slowly evaporate over time due to a phenomenon called Hawking radiation, named after Stephen Hawking, who first postulated it. The length of time it would require for a black hole with mass equal to the Sun to evaporate is about 1067 years, which is about as close to forever as anything in this universe can get. Supermassive black holes take much, much longer to evaporate. These will be arou
