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NASA is helping Stephen Hawking get a tiny ship to Alpha Centauri
NASA is helping Stephen Hawking and Russian venture capitalist Yuri Milner with the monumental task of getting a tiny probe to Alpha Centauri, the nearest star system to Earth. Project Starshot aims to propel a lightweight silicon "StarChip" to one-fifth the speed of light by hitting it with lasers from Earth, getting it to the star within 20 years. The space agency will help solve one of the thorniest problems -- the intense radiation of interstellar travel.
