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Black Holes Encyclopedia
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Are black holes 'doorways' to other parts of the universe?

So far, only in science fiction. Anything that falls into a black hole is trapped there, and it cannot come out of a "white hole" elsewhere in the universe. Theory does allow the existence of wormholes, which are theoretical "shortcuts" between two points in space-time. No wormholes have been detected, though. And the theories say that as soon as any matter tried to enter the wormhole, it would collapse. Unlike the heroes of the Stargate universe we can't create our own wormholes to other planets. Artificial wormholes would require enormous amounts of a form of energy that can exist only on paper or TV screens -- not in the real universe.

Other FAQs

What is a black hole?

Do black holes really exist?

Are any black holes close to Earth?

Will our Sun become a black hole?

What is the biggest black hole?

What happens when you get close to a black hole?

How does a black hole form?

Can anything ever escape from a black hole?

How many black holes are there?

How can a black hole's own gravity, but not light, escape from it?

Where did the name 'black hole' come from?

How are black holes named?

Will our universe become a black hole?


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