Join Donate

Planetary TV

LightSail 2: Fulfilling a Dream

Please accept marketing-cookies to watch this video.

Carl Sagan dreamed of solar sailing before founding The Planetary Society in 1980. Our members have helped us fulfill that dream.

With your help, we will go even farther to advance new space technologies, defend Earth, and help NASA’s budget grow to create more missions.

You are here:
Comments & Sharing
Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.