Nasa and Stephen Hawking are working on a nano-starship that can travel 1/5th the speed of light: 'If successful, the ship, called “StarChip” could reach Earth’s closest star system, Alpha Centauri, in 20 years.'

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Submitted December 11, 2016 at 08:54AM by maxwellhill http://ift.tt/2gy8Zb4