18. What is the difference between a worm hole and a black hole? (A K2S Question)

From The Space Library

One consequence of Einstein's theory of relativity allows the concept of time to be symmetrical. If you describe black holes as a gravitational well in space where matter is continuously falling in, the opposite solution in time would be an area of space where no material could fall in, and in fact it would actually allow matter to escape into space. This is a white hole. Now, if there is a rotating black hole in space, there is a chance for an object to fall into a black hole at a certain approach angle that would allow it to miss the singularity in the center of the black hole and find its way out into another region of space through a white hole. The space connecting the two regions would be a worm hole. This worm hole could drop you off into distant regions within our Universe or perhaps be connected to different universes. Now that I have described what it is, I must emphasize that scientists currently do not believe white holes or worms holes really exist—just because something can be described in a mathematical model does not mean it exists in reality.

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Answer provided by Jim Zebrowski

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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