1000 Years Left On Earth Says Physicist Stephen Hawking

According to Stephen Hawking, we only have about 1000 more years left on Earth. During a talk at Oxford University, Hawking brought up the possible future for the world. According to physicist Hawking, we will not last 1000 more years on Earth without venturing out into space to find other habitable planets. Perhaps Elon Musk is not so crazy for talking about colonizing Mars.