Science ❯ Planetary Science ❯ Planet Formation

Rocky Planets

Super-Earths Cosmic Conditions Mass and Composition Planetary Atmospheres

Nearby Super‑Earth Candidate GJ 3378 b Reclassified as Likely Rocky World

Lowered mass places the 21.45‑day planet inside its star's habitable zone, prompting urgent follow‑up to test whether it retains an atmosphere.

Reanalysis Lowers Mass of Nearby Exoplanet GJ 3378b and Places It in Habitable Zone