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

A potential extinction-level event?

An edited interview transcript between The Planetary Society’s Chief of Space Policy Casey Dreier, Director of Government Relations Jack Kiraly, and Planetary Radio host Sarah Al-Ahmed about reports that the White House is considering a 25% cut to NASA’s topline budget in 2026, including a 50% cut to the Science Mission Directorate.

Your impact: December solstice 2024

Searching for ET and encouraging young minds.

Your impact: September equinox 2024

Exploring Europa and defending Earth.