Tipsheet

Beware Of Alien Attacks...

Jillian Bandes | April 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."