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Planetary Defender

STOP ASTEROID THREATS

Be a Planetary Defender

asteroids

Your favorite things are in danger

Our pale blue dot is sitting in a cosmic shooting gallery. Asteroid and comet impacts, while not common, are very real threats. Saving our planet and everything on it is going to take all of us.

Your favorite things are in danger

Our pale blue dot is sitting in a cosmic shooting gallery. Asteroid and comet impacts, while not common, are very real threats. Saving our planet and everything on it is going to take all of us.

asteroids
earth and moon

We have a plan

Space is vast and full of rocky invaders. This international effort requires space agencies, citizen scientists and major public support - that's where you come in. We need your help to fortify our defense initiatives.

megaphone

Educate the world

We raise awareness with the public through educational outreach and meet with policymakers to prioritize solving the threat.

observatory

Find the threats

We fund the watchers of the sky. Our grants give astronomers better tools to cover more space, find more asteroids and determine which ones are threats.

earth deflection

Prepare the defense

We bring the world’s experts together to accelerate the global response to an asteroid threat at the IAA Planetary Defense Conference.

It's time to
kick asteroid.

icons icons

Kittens, nature, tacos... whatever you love, chances are it exists on Earth. Rocky space invaders threaten to rob us of our favorite things. We’re not going to let that happen.

You can save
all the things.

Support the Science!

The Planetary Society's Shoemaker Grant program supports amateur observers, observers in developing countries, and professional astronomers following up potentially hazardous asteroids.

Donate Now!

Stay informed

Knowledge is power

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Inform the masses!