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Forty years of space for everyone

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Our Responsibility to Deal More Kindly With One Another

The Downlink

A Voyage to Mercury, and the Latest in Space Policy

Planetary Radio

The Next 10 Years: Continuing our Solar System Tour

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Carl Sagan co-founded The Planetary Society to give you a role in space exploration.

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The LightSail 2 Mission

LightSail Updates

Here's What We've Learned So Far from LightSail 2

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The LightSail Mission

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Sharing and growing the passion, beauty, and joy of space exploration.

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We fund innovative science and engineering projects to discover more about our planetary neighborhood and beyond.

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We Advocate

We guide space policy and work to ensure NASA has the funding it needs to explore new worlds and improve our own.

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We Educate

We reach out to people of all ages, inspiring them to understand the cosmos and equipping them with the tools to explore.

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