#super-earths

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fromNature
1 week ago

Core-envelope miscibility in sub-Neptunes and super-Earths - Nature

The population of super-Earths and sub-Neptunes, and the origin of the radius valley that separates these two classes of planets, is best explained by cores that are made of an Earth-like composition without a substantial amount of accreted ice8,9,10,11. For sub-Neptunes, the hydrogen-rich envelope overlies the rocky core for billions of years, whereas for super-Earths, the envelope may be retained for about 100 Myr (refs. ).
Science
#exoplanets
fromBig Think
4 months ago
Science

JWST could expose alien biosignatures on hazy exoplanets

Haze-rich super-Earths and mini-Neptunes, the most common exoplanets, may host complex organic chemistry and potentially biological processes detectable via combined lab, theory, and observations.
fromArs Technica
9 months ago
OMG science

New study: There are lots of icy super-Earths

Microlensing reveals diverse exoplanets beyond those found via standard methods, indicating significant rocky super-Earth populations in wider orbits.
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