Origin of water on Earth
Earth is unique among known planets in having oceans of liquid water on its surface. It was long thought that Earth's water did not originate from the planet's region of the protoplanetary disk.
Earth is unique among known planets in having oceans of liquid water on its surface. It was long thought that Earth's water did not originate from the planet's region of the protoplanetary disk.
Earth is unique among known planets in having oceans of liquid water on its surface. It was long thought that Earth's water did not originate from the planet's region of the protoplanetary disk.
Source: Wikipedia "Origin of water on Earth" · CC BY-SA 4.0
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