Advance
space exploration

Learn about our mission to increase discoveries in our Solar System, elevate the search for life beyond our planet, and decrease the risk of Earth being hit by an asteroid.

Sign up for updates, weekly tools, and exclusive opportunities to support space exploration. You may opt out any time. View our Privacy Policy. The Planetary Society is a registered nonprofit organization.

Featured Stories

Find your place in space

Co-founded by Carl Sagan in 1980, The Planetary Society is a member-funded nonprofit organization dedicated to advancing space science and exploration through three core enterprises.

hand reaching toward planet

Explore Worlds

Increase discoveries about the worlds of our solar system and beyond.

hand pointing to dna

Find Life

Elevate the search for life as a space exploration priority.

fist blocking meteor

Defend Earth

Decrease the risk of Earth being hit by an asteroid or comet.

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Join CEO Bill Nye and become a member of the world’s largest and most effective space advocacy movement.

rover tracks on Mars

Featured Fundraising Campaign

Let's Go Beyond the Horizon

Every success in space exploration is the result of the community of space enthusiasts, like you, who believe it is important. You can help usher in the next great era of space exploration with your gift today.

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Space Policy & Advocacy

Where we stand on the issues

Mars sample return, increasing NASA science funding, advocating for NEO Surveyor, flexibility for Artemis procurement and partnerships, and elevating the search for life beyond Earth. Together we’re active in advancing space science and exploration.

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Get More Space

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