Black Holes area region of space-time, which nothing can escape, even light. It is impossible to see a black hole directly because no light can escape from them; they are black. But there are good reasons to think they exist. When a large star has burnt all its fuel it explodes into a supernova. The stuff that is left collapses down to an extremely dense object known as a neutron star. We know that these …showed first 75 words of 296 total…

…showed last 75 words of 296 total…st of its atmosphere very quickly. It's a violent process but quite pretty. After enjoying this for a while, you would see the star itself start to collapse. After watching this for a while, you would think it mighty peculiar that the star seems to be slowing down and getting redder and dimmer as it collapses. These are the effects of the gravitational field getting stronger. Okay, a brief side-note about gravity and light cones