Stephen Hawking gives humanity a due date for finding another planet

If humanity survives the rise of artificial intelligence, the ravages of climate change and the threat of nuclear terrorism in the next century, it doesn't mean we're home free, according to Stephen Hawking.
Stephen Hawking says humanity has about 1000 years to find a new place to live. / Internet photo
Stephen Hawking says humanity has about 1000 years to find a new place to live. / Internet photo
Quartz