Bill Nye's LightSail 2 Successfully Deploys Giant Solar Sail in Orbit
Watch as LightSail 2 deploys its boxing ring-sized sail and feast your eyes on beautiful photos of Earth it has snapped while in orbit. The Planetary Society's LightSail 2 is the first spacecraft to be solely propelled by sunlight.
5:52 AM EDT July 25, 2019
9:28 AM EDT July 25, 2019