If aliens visit us, the outcome could be much like when Columbus landed in America, which didn’t turn out well for the Native Americans,” Professor Hawking told El País .
“Such advanced aliens would perhaps become nomads, looking to conquer and colonize whatever planets they can reach,” he said.
The physicist, who has suffered from motor neurone disease since his twenties, explained that the existence of aliens is beyond doubt.
“To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.”
He also explained that the best chances for the survival of the human race is to find a new home on another planet.
“There’s an increasing risk that a disaster will destroy Earth,” Prof Hawking explains.
“I therefore want to raise public awareness about the importance of space flight. I have learnt not to look too far ahead, but to concentrate on the present.
Source: Daily Mirror