September 2010

Hawking: "It's Time to Leave Earth"

When Stephen Hawking says it’s time to get out, you know it’s time to cut our losses and move to Mars—or whatever planet will have us. According to Hawking, if we don’t leave the Earth within the next 100 years, we will become extinct. “Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change the environment for good or ill,” he says. Obviously, we’re doing ill on a massive scale—which leads us to an important question.