Explore Worlds
Find Life
Defend Earth
The MarsDials and Bill Nye the Science Guy
Bill Nye tells how a simple shadowcaster intended for the Mars Exploration Rovers became an interplanetary campaign with the slogan, "Two Worlds, One Sun."
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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.
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The Planetary Society
Our Vision
Know the cosmos and our place within it.
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Empowering the world's citizens to advance space science and exploration.