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.
The Planetary Society is celebrating the 40th anniversary of the first Space Shuttle launch with exclusive resources, interviews, and personal stories.
NASA astronaut Bob Crippen joins Mat Kaplan on Planetary Radio to look back at the Space Shuttle's first flight.
Thanks to our members, we hosted Planetfest '21, advocated for space, and took a big STEP forward with our new sci-tech grants program.