The Planetary Fund

Your support of The Planetary Fund powers our mission to explore worlds, find life, and defend Earth.

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Become A Space Advocate

Take action for space exploration! Give today to have your gift matched up to $75,000. Our Advocacy Program provides each Society member a voice in the process. Funding is critical. The more we have, the more effective we can be, translating into more missions, more science, and more exploration.

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LightSail

The Society’s dream of solar sailing came true with the successful test flight of our LightSail 1 spacecraft. LightSail 2 launched aboard the SpaceX Falcon Heavy rocket on June 25, 2019. Join the Extended Mission Team and support this historic project!

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Shoemaker Near-Earth Object Grant Program

The Planetary Society's Shoemaker Grant program supports amateur observers, observers in developing countries, and professional astronomers following up potentially hazardous asteroids.

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Planetary Radio

Each week, Planetary Radio visits with a scientist, engineer, project manager, astronaut, advocate or writer who provides a unique and exciting perspective on the exploration of our solar system and beyond.

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Membership & Giving

There's many ways to support The Planetary Society. Join thousands of fellow space enthusiasts from around the world who are advancing space science and exploration.