Bayesian interior models find rock fractions of ~60% in the heavy-element envelopes of both Uranus and Neptune, with Neptune showing rock-rich mantles (~55%) and Uranus ice-rich mantles (~41%).
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Reassessing planetary composition: Evidence of rock-dominated envelopes in Uranus and Neptune
Bayesian interior models find rock fractions of ~60% in the heavy-element envelopes of both Uranus and Neptune, with Neptune showing rock-rich mantles (~55%) and Uranus ice-rich mantles (~41%).