Solar system montage with eight planets

The Planetary Society

The Planetary Society has inspired millions of people to explore other worlds and seek other life. With the mission to empower the world's citizens to advance space science and exploration, its international membership makes the non-governmental Planetary Society the largest space interest group in the world.

Carl Sagan, Bruce Murray, and Louis Friedman founded The Planetary Society in 1980. Bill Nye, a longtime member of The Planetary Society's Board, serves as CEO. Learn more about The Planetary Society.

Latest Articles

2022 impact report

A review of the results The Planetary Society achieved in 2022 thanks to the support of our members.

Planetary Radio has a new host

After 20 years at the helm, our friend and colleague Mat Kaplan is retiring as the host of Planetary Radio. The good news is the show will be in excellent hands after Mat’s departure. We can finally announce Planetary Radio’s new host is Sarah Al-Ahmed.

Your impact: September equinox 2022

We’re pleased to report a very active summer back to you.