Earth is an ocean planet. Our home world's abundance of water -- and life -- makes it unique in our solar system. Other planets, plus a few moons, have ice, atmospheres, seasons and even weather, but only on Earth does the whole complicated mix come together in a way that encourages life -- and lots of it.
Featured Mission: Earth Science Missions
Orbiting spacecraft study our home world from above as a whole system and aid in our understanding how the planet is changing.
Editor's Note: This page provides a brief overview of our home planet. For a comprehensive look at the Earth, visit NASA's Earth Science Division.
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