What exactly are black holes and how are they created? Could a spacecraft enter a black hole and exit unharmed? Does this phenomenon offer a possible method of time travel. . . or even provide a link to parallel worlds?
The release of Disney studios' The Black Hole has whetted public interest in this complex astronomical riddle. For a layman's explanation, we turn to an acknowledged expert on the subject—Dr. William J. Kaufman of the University of San Diego. […]
