Under the pressure of a watery ocean, rock-forming minerals might dissolve at a planet’s rock–water interface, generating a denser-than-water layer that should be incorporated into models. The experimental data for MgO presented here are relevant to water-rich Earth-sized planets such as TRAPPIST-1 c and f, and to Uranus.
- Taehyun Kim
- Stella Chariton
- Yongjae Lee
