Stephen Hawking says humans need to leave earth in 100 years
- 7 years ago
Renowned physicist Stephen Hawking says According to Hawking, threats to human survival on earth include climate change, overpopulation, epidemics and asteroid strikes. Hawking told the Oxford University Union Human colonization of Mars is becoming a reality, and billionaire Elon Musk has already talked about establishing a settlement within the next few decades.