Stephen Hawking says we have 100 years to colonize a new planet—or die. Could we do it?
Here's what it would take to survive this particular doomsday prophecy
By Sarah Fecht May 4, 2017
Stephen Hawking is making apocalyptic predictions again. The respected theoretical physicist warns that humanity needs to become a multi-planetary species within the next century if we don’t want to go extinct. Last year, he prophesied that we had maybe 1,000 years left on Earth, and the inspiration for this newly-urgent timeline is unclear—except for the fact that Hawking’s new documentary about colonizing Mars is coming out soon.
http://www.popsci.com/stephen-hawking-human-extinction-colonize-mars
