(no subject)
When a star has spent all of its fuel it will collapse into a neutron star. If the gravitational forces overwhelm the pressure, it will shrink and collapse even more into what we call a black hole. Inside this monster nothing can escape not even light itself!
these things punch a hole through the fabric of space, and are about the size of a pin head. No one is sure what happens if you were to get sucked into one. perhaps you would just die, or perhaps you would be taken to another part of the universe, or another part of time. truth is that no one knows for sure. All we know is that there is a singularity at the center of them. As of now we cannot see a black hole directly cause light cannont escape it, but by observing the things being sucked in around it, we can determine that it is there. Also a black hole never dies, so there are probably billions if not trillions in the universe.
To give you an idea of the gravitational strength a black hole has picture this; the harder and faster you throw something into the air the higher it goes and the more time it takes to come back down. Eventually an object will reach what is known as an escape velocity, where it can break out of the gravitational field holding it. On earth the escape velocity is about 7 miles a second. But when something keeps getting crushed smaller and smaller, the escape velocity increases. Eventually something can get so small that not even light, that travles at 186,000 miles a second, can escape it. these are black holes.