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Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust.
Learn about Earth's size, distance, orbit, rotation, seasons, moon, rings, formation, structure, surface, and more. Find out how Earth is unique among the planets and why it is the only place we know of with life.
2 ημέρες πριν · Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life.
Learn all about our amazing planet with our facts about the Earth! How big is Earth? Why do we have day and night, and four seasons? How old is the Earth?
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.
Learn about Earth's features, layers, atmosphere, climate, and history from this comprehensive article. Find out how Earth is unique among the planets and how we study it from space.
8 Νοε 2024 · Learn about Earth's structure, surface, atmosphere, time, neighbors and history from NASA. See pictures and videos of Earth from space and explore its features and systems.
