Co-founded by Carl Sagan in 1980, The Planetary Society is a member-funded nonprofit organization dedicated to advancing space science and exploration through three core enterprises.

Our monthly feature focuses on easy and fun things to see in the night sky, including eclipses, supermoons, meteor showers, planetary conjunctions, and…

They established The Planetary Society to give anyone from anywhere in the world an active role in advancing space exploration. Today, The Planetary Society continues this work, under the …

What’s up in the night sky: February 2026 Our monthly feature focuses on easy and fun things to see in the night sky, including eclipses, supermoons, meteor showers, planetary conjunctions, and more.

We connect with planetary exploration experts from around the world to strengthen our work and support international exploration efforts. Our 50,000+ international membership makes us the largest, …

The latest stories from The Planetary Society, featuring humanity's quest to explore worlds, find life, and defend Earth.

Together with our members and supporters, we’re on a mission to explore worlds, find life off Earth, and protect our planet from dangerous asteroids. Join us at planetary.org.

Jan 26, 2026 · The Planetary Society remains an independent, member-funded nonprofit with a global reach, advocating for space exploration, advancing science and technology, and engaging the public …

Mar 7, 2025 · The Planetary Society is deeply alarmed by reports that the White House will propose a 50% cut to NASA’s science activities in the upcoming agency budget request. Such a substantial …

Jan 7, 2026 · In this episode of Planetary Radio, we explore the science of the heliosphere and the realm beyond with Linda Spilker, project scientist for the Voyager mission at NASA Jet Propulsion …