Renowned physicist Stephen Hawking has warned that humanity needs to become a multi-planetary species within the next century in order to avoid extinction.
Hawking made the prediction in a new documentary called Expedition New Earth, which is set to be released this summer as part of the BBC’s Tomorrow’s World science season.
Existential risks include climate change, overpopulation, epidemics and asteroid strikes, according to Hawking.
Efforts to create a human colony on Mars are already underway, with billionaire Elon Musk hoping to establish a settlement within the next few decades through his aerospace firm SpaceX. “I don’t have a doomsday prophecy,” Musk said in 2016, “but history suggests some doomsday event will happen.” More >>