Beware Of Alien Attacks...

Jillian Bandes
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Posted: Apr 26, 2010 8:32 AM
...or, just beware of astrophysicists' offbeat predictions. Stephen Hawking believes aliens exist, but thinks that communicating with them is too dangerous.
The 68-year-old scientist says a visit by extraterrestrials to Earth would be like Christopher Columbus arriving in the Americas, "which didn't turn out very well for the Native Americans."