Hidden water in magma ocean exoplanets

Dorn & Lichtenberg 2021, ApJL; https://arxiv.org/abs/2110.15069. We demonstrate that the deep volatile storage capacity of magma oceans has significant implications for the bulk composition, interior and climate state inferred from exoplanet mass and radius data. Experimental petrology provides the fundamental properties on the ability of water and melt to mix. ...