Stephen Hawking Says Humans Need to Leave Earth Within the Next 100 Years or Face Extinction

Um, Elon Musk might want to hurry up and get us to Mars with his SpaceX program already.

Why, you ask? Stephen Hawking, a world-renowned physicist, says it’s almost time for humans to bid farewell to their home planet.

In the upcoming BBC documentary Expedition New Earth, Hawking suggests humans have 100 years to colonize elsewhere or prepare for the extinction of our species.