Professor Stephen Hawking, Professor Danielle George and Christophe Galfard join forces to find out if, and how, humans can reach for the stars and relocate to different planets. Show more
Discover 11,128,835 listings and 280,433 playable programmes from the BBC
Professor Stephen Hawking, Professor Danielle George and Christophe Galfard join forces to find out if, and how, humans can reach for the stars and relocate to different planets. Show more