LightSail
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LightSail is a project to demonstrate controlled solar sailing within low Earth orbit using a CubeSat. The project was developed by The Planetary Society, a global non-profit organization devoted to space exploration. It consists of two spacecraft... Wikipedia
Dimensions: Core: 30 cm × 10 cm × 10 cm (11.8 in × 3.9 in × 3.9 in); Sail: 32 m2 (340 sq ft)
Launch date: LightSail 1: 20 May 2015; LightSail 2: 25 June 2019
Mission duration: LightSail 1 Final: 25 days; LightSail 2 Final: 3 years, 4 months and 23 days
Rocket: LightSail 1: Atlas V; LightSail 2: Falcon Heavy