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Flight by Light for CubeSats

LightSail® is a citizen-funded project from The Planetary Society. We're sending a small spacecraft, propelled solely by sunlight, to Earth orbit.

In 2015, our LightSail 1 spacecraft completed a shakedown cruise. In 2019, LightSail 2 will launch aboard a SpaceX Falcon Heavy, and we will attempt the first, controlled solar sail flight in Earth orbit.

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LightSail 2 Animation

This animation details the piece by piece construction of the LightSail 2 spacecraft as well as its maneuvers in space.

In 2019, LightSail 2 will ride to space aboard a SpaceX Falcon Heavy rocket

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Frequently Asked Questions

Details on everything from the origins of solar sailing to the latest LightSail mission

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