Multiple Worlds, Parallel Universes (April 2005 Encore)

Quirks and Quarks

If you've ever read any science fiction, you've probably come across the idea of alternate realities: planets where life is almost the same as here on Earth, with just a few key differences. While the idea seems strange, it's one that some physicists are taking seriously. They're looking at the possibility that other universes exist in parallel with our own.

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