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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.
- History
Earth formed around 4.54 billion years ago, approximately...
- Internal structure
The internal structure of Earth is the layers of the Earth,...
- Age
Age of Earth. The age of Earth is estimated to be 4.54 ±...
- History
Die Erde ist der dichteste, fünftgrößte und der Sonne drittnächste Planet des Sonnensystems. Sie ist Ursprungsort und Heimat aller bekannten Lebewesen. Ihr Durchmesser beträgt mehr als 12.700 Kilometer und ihr Alter etwa 4,6 Milliarden Jahre. Nach ihrer vorherrschenden geochemischen Beschaffenheit wurde der Begriff der ...
Vor 2 Tagen · 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 harbour life. It is designated by the symbol ♁.
It is one of four rocky planets on the inner side of the Solar System. The other three are Mercury, Venus, and Mars . The large mass of the Sun keeps the Earth in orbit through the force of gravity. [31] Earth also turns around in space, so that different parts face the Sun at different times.