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

Your impact: March equinox 2023

The results of our Best of 2022 awards are in!

Your impact: December solstice 2022

A great kickstart to our new kids membership program!

2022 impact report

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