Stephen Hawking has tackled the mysteries of the universe his entire life.

Now the world-renowned scientist has some new things to say about a potential alien invasion .

"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."

Professor David M. Jacobs makes a compelling case that we are in the process of an ongoing alien invasion now. I believe human-alien hybrids are very likely walking among us today. And I further suspect that this is taking place with full knowledge of a select group of powerful human elite quislings. Interestingly, this apparently is the theme of the latest incarnation of "The X-files." And as we know, the PTB love to telegraph their punches. :- To read more, click here.