While we still have a lot to learn about black holes, technological advancements are making it easier to understand the mystery that surrounds them. So, without further ado, here are 20 Black Hole Facts To Blow Your Mind! Hawking bet that the source was not a black hole and Thorne thought it was. Decades later in 1990, Hawking finally admitted he was wrong and that Thorne was right. If the theory is correct, the black hole will cease to exist after they lose all their mass. The black hole captured by Dr. Katie Bouman is known as Messier 87. It’s 55 million light years away from earth and is thought to be one of the largest black holes in existence.