Learn how our members and community are changing the worlds.
Our citizen-funded spacecraft successfully demonstrated solar sailing for CubeSats.
A Planetary Society retrospective, plus Carl Sagan's Adventure of the Planets and an inspiring young explorer.
Volunteer as a space advocate.
Join fellow space enthusiasts in advancing space science and exploration.
Get updates and weekly tools to learn, share, and advocate for space exploration.
Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Know the cosmos and our place within it.
Empowering the world's citizens to advance space science and exploration.
Bruce Murray Space Image Library
"We're changing the world. Are you in?"- CEO Bill Nye