Courtesy Mark RyanRemember back a couple years when the Vatican said it was okay to believe in extraterrestrials? Well, now noted physicist and cosmologist Stephen Hawking says if they do exist - and he figures the odds are pretty good they do - it might not be that great an idea to try to contact them. He points to what happened to the Native Americans who greeted Columbus and figures the same kind of thing could happen to the entire human race if the aliens turn out to be a tad too aggressive and covetous of our planet and its resources.
"We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet." - Stephen Hawking
And let's not forget that delightful Twilight Zone episode where apparently chummy nine-foot tall aliens arrive promising peace and prosperity and a book titled To Serve Man and start shuttling loads of humans back to their planet (supposedly for free vacations) before it's realized the "altruistic" book is actually a cookbook.
With that in mind, Hawking may have a good point. You can read more of what he thinks here. Or do you think he's just being anti-social?