Radius-mass diagrams for planets with ages <1 Gyr (top panels) and >1 Gyr (bottom panels) with He I (left panels) and H (Hα or Lyα, middle panels) observations, and evaporation (combination of He I and/or H observations, right panels). Detections and non-detections are marked as blue circles and red crosses, respectively. The solid lines are the theoretical models from Zeng et al. (2019) for Earth-like (green) and 50% H₂O+50% rocky (blue) compositions. The grey points represent all known planets with mass and radius determined with a precision better than 20% (data from NASA Exoplanet Archive).