Image Details
Caption: Figure 15.
Mass–radius diagram of planets between 1 and 3.5 R⊕ colored by equilibrium temperature. We show planets with published JWST spectra and Rp > 1.7 R⊕ as stars with background points from the NASA Exoplanet Archive with measured masses and radii. We show curves of constant composition for an Earth-like planet from L. Zeng et al. (2016), for steam from A. Aguichine et al. (2021) assuming a 600 K planet, and for H2–He from J. J. Fortney et al. (2013) assuming a 600 K planet at an age of 5 Gyr.
© 2026. The Author(s). Published by the American Astronomical Society.