http://www.planetary.org/blogs/jason-davis/lightsail-2-successful-flight-by-light.html
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4 hours ago
Wednesday, July 31, 2019
LightSail 2 Rides to a Higher Orbit, Propelled by Photons from the Sun
http://www.planetary.org/blogs/jason-davis/lightsail-2-successful-flight-by-light.html
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