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Support Our Projects

The Threat is Real

You’re a planetary defender. Working together to fund our Shoemaker NEO Grants for astronomers, you can literally help save the world.

Thanks to a generous group of members, all gifts will be matched up to a total of $15,000.

Support Other Planetary Projects


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.



The Society’s dream of solar sailing came true with the successful test flight of our LightSail 1 spacecraft. Soon, LightSail 2 will launch aboard the SpaceX Falcon Heavy. Be part of this epic point in space exploration history!

Capitol building


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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Join The Planetary Society

Find your place in space.

Join Our Journey

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