stephen hawking: aliens definitely exist , page-3

Aliens almost certainly exist but humans should make every attempt to avoid them, Stephen Hawking has warned.

In a series for the Discovery Channel the renowned astrophysicist said it was "perfectly rational" to assume intelligent life exists elsewhere.

But he warned that aliens might simply raid Earth for resources, then move on.

"If aliens visit us, the outcome would be much as when Columbus landed in America, which didn't turn out well for the Native Americans," he said.

Mr Hawking thinks that, rather than actively trying to communicate with extra-terrestrials, humans should do everything possible to avoid contact.

He explained: "We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet."


More at:
http://news.bbc.co.uk/2/hi/uk_news/8642558.stm