How Do You Fly to Alpha Centauri in Just 20 Years? Ride a Laser Beam (2016)(spectrum.ieee.org)
spectrum.ieee.org
How Do You Fly to Alpha Centauri in Just 20 Years? Ride a Laser Beam (2016)
http://spectrum.ieee.org/tech-talk/aerospace/space-flight/how-do-you-fly-to-alpha-centauri-in-just-20-years-ride-a-laser-beam
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