Fig. 1
Most recent planetary masses and radii (Grimm et al. 2018; Delrez et al. 2018, black), compared to prior estimates from Wang et al. (2017, grey). Most of the planets could contain ice, rock, and metal: 75% ice by mass, with 12.5% rock and 12.5% iron (dashed line); pure rock (dotted); or 50% rock by mass, with 25% iron, and 25% ice (solid curve).
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