Alien Invasion?
Some people have theorized that so-called "aliens" are residents of a parallel universe who manage somehow to enter our reality–but how would they do it? One way would be through what quantum physicists call a "wormhole," even though these passageways have never been seen or detected. But that may soon change: A new study suggests that wormholes might exist between distant stars, which mean they might be visible with new space telescopes like the Kepler.
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