Stephen Hawking warns over making contact with aliens
Found on BBC News on Saturday, 24 April 2010
In a series for the Discovery Channel the renowned astrophysicist said it was "perfectly rational" to assume intelligent life exists elsewhere.
"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.
He explained: "We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet."
Now the question is if the history of us humans is the similar to that of the majority of alien civilizations; maybe we are lucky and it turns out that we are rare weird freaks who act so violently.