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

Solar System History 101

How did our solar system come to be? Why are the planets, asteroids, comets, and other small worlds where they are now?

Space is vast. There's a lot of exploring to do.

You can increase discoveries in the worlds of our solar system and beyond. When you join The Planetary Society, you help build public support for planetary science, encourage decision makers to prioritize human and robotic exploration, and support technological advances in planetary exploration.

Become A Member