Michelle L. Hill — planetary scientist at UC Riverside. Lead author of the 2026 Smaller Than Earth Habitability Model (STEHM) arXiv preprint, which couples Jeans/XUV atmospheric escape with stagnant-lid interior cooling to set a ~0.8 R⊕ lower size limit for habitable-zone exoplanets.
Coverage in vault
- src-habitable-exoplanet-size-limit-2026-05 — Phys.org (Tomaswick, May 11 2026) summary.