Jupiter used to be twice as big as it is now — it could have held 2,000 Earths
Space.com   2 days ago
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Jupiter used to be twice as big as it is now — it could have held 2,000 Earths  SpaceJupiter Was Formerly Twice Its Current Size and Had a Much Stronger Magnetic Field  CaltechDetermination of Jupiter’s primordial physical state  NatureTwice the...