Jupiter’s early formation protected Earth

Jupiter’s early formation acted as an effective barrier against inward transport of material across the solar system disk, potentially explaining why our solar system lacks any super-Earths.  Effectivelly protecting the Earth.  Jupiter’s core grew to about 20 Earth masses within 1 million years, then to about 50 Earth masses for 3-4 million years before it’s final 300 EMs.

via Evidence that Jupiter is the oldest planet in the solar system.

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