Be a Planetary Defender

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Together we can defend Earth. As a Planetary Society supporter, you’re part of the solution in our mission to save humankind from the only large-scale natural disaster that can one day be prevented—potentially dangerous asteroids and comets or Near-Earth Objects (NEOs).

You and I know it: it’s not a matter of if a destructive asteroid will someday head toward a collision with Earth, it’s a matter of when.

Will you be a planetary defender and power our crucial work with your gift?

Join our mission to defend Earth today!

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Be a Planetary Defender

It’s not a matter of if, but when. Join our mission to defend Earth.