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Do more in space exploration.

The Planetary Society finds fun ways to get involved. Get active and volunteer, attend space events in your local area, participate in space-related contests, and help spread the adventure of space with the next generation.

Take Action

Don't be a bystander for Planetary exploration. Be an advocate. We'll show you how to write Congress, how to call your representative's offices, and more.

Join or Donate to The Planetary Society

The Planetary Society needs your support to pursue its mission of promoting planetary exploration. You can help by joining us as a member or giving a tax-deductible donation.


Sign up here to get episodes of The Planetary Post with Robert Picardo and other eNews from The Planetary Society.


The Planetary Society organizes space-related contests as a fun way to get the public involved with space exploration.

Messages from Earth

Be a part of space exploration! Starting with the launch of Cassini, The Planetary Society has created opportunities for people to participate in planetary missions by sending their names, messages, images, and wishes aboard spacecraft.

Members' Names Flying in Space

Since 1996, the full list of active Planetary Society members has flown to space aboard nineteen different spacecraft.

Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

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The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.


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