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Join Our Mission to Defend Earth

As a Planetary Defender, you’re part of the solution in our mission to decrease the risk of Earth being hit by an asteroid or comet.

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Support Other Planetary Projects

Europa

The Planetary Fund

The Planetary Fund accelerates progress in our four core enterprises—Robotic Space Exploration, Human Space Exploration, Planetary Defense, and The Search for Life. You can support the entire fund, or designate a core enterprise of your choice.

lightsail 2 over Baja

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. Be part of this epic point in space exploration history!

Capitol building

Advocacy

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.

Mat Kaplan and Enceladus

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. We hit the road now and then to produce a Planetary Radio Live show in front of an audience.

Other Ways to Give

Saturn and moons

Membership & Giving

Want to honor someone? Join the New Millennium Committee? Give stock or make a gift from your estate? You can support The Planetary Society, and space exploration, in the way that is best for you.

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Have you been a member before? Renew your membership here.

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