While there are some physicists who believe that black holes do not exist, there is much data to support otherwise. In fact, much evidence seems to support the existence of black holes. For example, NASA's Hubble Telescope and the Chandra X-ray Observatory seem to have discovered "direct ev...

Black Holes What is a Black Hole? A black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. An example of gravity I will quote from Black Holes FAQ by Ted Bunn. "Suppose that you are standing on t...