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Know the cosmos and our place within it.
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Empowering the world's citizens to advance space science and exploration.

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“Exploration is in our nature.” - Carl Sagan

Articles

Stories, updates, insights, and original analysis from The Planetary Society.

An asteroid over Chelyabinsk

The State of Planetary Defense

Vishnu Reddy delivers a sober but hopeful report on our understanding of near-Earth objects, their dangers, and our readiness.

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