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.

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 …

Explore the membership options of The Planetary Society and join fellow space enthusiasts in advancing space science and exploration.

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, …

We would love to hear from you! Please reach out to us using our contact information below. The Planetary Society ... "The Day the Earth Smiled" In this rare image taken on 19 July 2013, the wide …

We've sent names of Planetary Society members and supporters on 20 space missions. The Magellan Venus orbiter; the Mars rovers Sojourner, Spirit, and Opportunity; and the asteroids Braille and …

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 …

The Planetary Society celebrates the Perseverance rover landing with hundreds of members at our virtual Planetfest ‘21, while also marking two mission milestones: the first audio from Mars, thanks to …

Jun 19, 2025 · The Planetary Society established the Cosmos Award for Outstanding Public Presentation of Science in 2005. Only six individuals have received it. They include James Cameron, …

Answers to common questions about membership in The Planetary Society. Join us and find your place in space.