
Exoplanets smaller than Mars likely can’t keep air, UC Riverside simulations find
A habitable zone planet needs to be at least ~0.8 Earth radii to hold an atmosphere long enough.
By Nora Al-Subaie·· 4 min

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1 briefing · “riverside”

A habitable zone planet needs to be at least ~0.8 Earth radii to hold an atmosphere long enough.