Professor Stephen Hawking, one of the smartest guys around, concludes that extraterrestrials are certain to exist. “To my mathematical brain, the numbers alone make thinking about aliens perfectly rational” said Hawking.
They may pose a threat and humans should do all we can to avoid any contact.
Hawkins warns that alien life forms could be intelligent and pose a threat that could be devastating for humanity. He said “If aliens ever visit us, I think the outcome would be much as when Christopher Columbus first landed in America, which didn’t turn out very well for the Native Americans.”
On May 9, the Discovery Channel begins Stephen Hawking’s Universe series where he elaborates on his thinking.
The above are excerpts from Times Online- http://www.timesonline.co.uk/tol/news/science/space/article7107207.ece