We will colonise Mars in 100 yrs: Stephen Hawking The Economic Times

Professor Stephen Hawking, who has decoded some of the greatest mysteries of the universe, predicted that humans will colonise Mars – but not for at least a century.
The physicist said it is ‘essential’ for man to spread across the galaxy in case Earth is destroyed suggesting that it was ‘almost certain’ that a disaster ‘such as nuclear war or global warming’ would obliterate the planet within a thousand years.
“It is essential that we colonise space. I believe that we will eventually establish self-sustaining colonies on Mars and other bodies in the solar system, but not within the next 100 years,” the Daily Mail quoted Professor Hawking as telling BBC Radio 4’s Today programme on the eve of his 70th birthday.