Radius of close-in exoplanets (known to better than 30% precision) as a function of orbital period based on the NASA Exoplanet Archive Composite database². The background color scales with the observed occurrence, increasing from yellow to black. Dashed lines show the Desert and Ridge boundaries (Castro-González et al. 2024a). Diamonds indicate ATREIDES targets, with a star for TOI-421 c. Square symbols show Neptunes for which escaping H/He was detected (red; GJ 436 b, GJ 3470 b, HAT-P-26 b, HAT-P-11 b from left to right) or not (magenta). Crosses show Neptunes for which the 3D spin-orbit angle has been measured (Tepcat³) to better than 30°. Data were retrieved in May 2025.