🔬 Science 1d ago · ETH Zurich

The stuff that makes up Earth came from the inner solar system

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The stuff that makes up Earth came from the inner solar system
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Planetary scientists have shown that the material that makes up the Earth originates exclusively from the inner solar system.
Planetary scientists have long debated where the material that formed our Earth comes from. Despite its location in the inner solar system, they consider it likely that 6–40% of this material must have come from the outer solar system, i.e., beyond Jupiter.
For a long time, material from the outer solar system was considered necessary to bring volatile components such as

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