We may be on the cusp of developing the technologies that could get humans to a distant planet like Proxima B, but getting there is only part of the problem.
 
To truly colonise the planet, we would need to build a brand new civilization from scratch. Danielle George explores whether robots could hold the key.
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Stephen Hawking Search For A New Earth homepage
Could Robots Build A New Civilization?
Stephen Hawking's
The Search For A New Earth
 
1 x 90 min, Brook Lapping for BBC