The Planetary Society's LightSail to Launch Aboard Atlas-V May 20

From The Planetary Society: “The Planetary Society’s LightSail solar sailing spacecraft is scheduled to ride a SpaceX Falcon Heavy rocket to orbit in 2016 with its parent satellite, Prox-1.” Image Credit: Josh Spradling /The Planetary Society (http://sail.planetary.org/gallery/lightsail.html)

The idea of solar sails carrying satellites and humans into space has been something bandied about […]