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Flight by light for CubeSats



LightSail-1 has a launch date! The Planetary Society's solar sailing spacecraft is scheduled to launch aboard the SpaceX Falcon Heavy in April 2016. 

Replay the live announcement

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Josh Spradling / The Planetary Society

LightSail-1 Mission Trailer

CubeSats are tiny, low-cost satellites that have opened up new avenues of space research for universities and small organizations.

In order for CubeSat applications to reach the next level, the miniature satellites need a reliable form of propulsion for orbital maneuvers and trips beyond our planet. This is where solar sailing—transferring the momentum of photons to a large reflective sail—comes in. The technology was successfully used by Japan’s IKAROS mission in 2010, and NASA’s NanoSail-D test-deployed a CubeSat solar sail in Earth orbit later that year.

In 2016, The Planetary Society’s LightSail program will take the technology a step further. LightSail-1 will attempt to demonstrate controlled solar sailing—flight by light—for CubeSats.

Project updates

Tonight I Glimpsed LightSail

Posted by Bill Nye on 2015/06/14 03:05 CDT | 7 comments

Tonight, for the first time, I glimpsed our spacecraft with my own eyes. It was just the faintest pinprick against the bright lights of the big city. But, there it was right on time and exactly per the coordinates.

Read More »

In Pictures: LightSail’s Final Days in Space

Posted by Jason Davis on 2015/06/12 03:30 CDT | 7 comments

LightSail’s brief stay in orbit is almost over. Here are a few photos and videos of the spacecraft from observers around the world.

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Pretty (Partial) Picture: LightSail Catches a Glimpse of Earth

Posted by Jason Davis on 2015/06/10 10:00 CDT | 3 comments

With the team still trying to download an image from LightSail's second camera, Emily Lakdawalla processed a partial image from the first camera that contains a slice of Earth.

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