Stephen Hawking: Humans must leave Earth within 600 years

Professor Stephen Hawking isn't afraid to state his opinion bluntly and honestly. He has publicly expressed his fears about the future of artificial intelligence (AI), the need for a new Space Age, the serious realities of global warming, how we might reach another Solar System, and that, as a species, humans must leave Earth in order to survive. Hawking has previously stated that our time on Earth is limited to 100 years, after originally estimating 1,000 years. But, in a new announcement in a video presentation this past Sunday, November 5th at the Tencent Web Summit in Beijing, he gave the human species less than 600 years before we will need to leave Earth, according to the British newspaper The Sun. Earlier in the year, Hawking said that: "We are running out of space and the only places to go to are other worlds. It is time to explore other solar systems. Spreading out may be the only thing that saves us from ourselves. I am convinced that humans need to leave Earth."