Professor Stephen Hawking presents his predictions that the human race only has 100 years before we need to colonise another planet.

Stephen Hawking believed that we have just 100 years to populate a new planet if the human species is to survive, but is there another planet out there that we could call home? In this BBC documentary, Professor Hawking talks to top scientists, technologists and engineers around the globe who are working to answer that question.—bufvc.ac.uk