Planetary Academy

Will you back our new kids membership program by sharing your passion for space with the young explorer in your life?

Back Our Project

Featured Stories

Support Our Core Enterprises

Your Planetary Fund support powers our mission to explore worlds, find life, and defend Earth.

Donate Today

The LightSail 2 Mission

Carl Sagan co-founded The Planetary Society to give you a role in space exploration.

Join CEO Bill Nye and the world’s largest and most effective space advocacy movement.

Become a member

Please accept marketing-cookies to watch this video.

Sharing and growing the passion, beauty, and joy of space exploration.



We expand public knowledge about space.

Learn More


We shape space policy and fight for future exploration.

Learn More


We invest in innovative space science and technology.

Learn More
hands holding earth


We cultivate a worldwide movement for space.

Learn More
people at launch event

Get More Space

Sign up for updates, weekly tools, and exclusive opportunities to support space exploration. You may opt out any time. View our Privacy Policy.