A hycean planet (/ˈhaɪʃən/ HY-shən) is a hypothetical type of exoplanet that features a liquid water ocean underneath a hydrogen-rich atmosphere. The...

low instellation rates. K2-18 b is probably the best known "hycean" planet. Other, non-hycean compositions are possible, both habitable and nonhabitable...

compositions of exoplanets, and with coining the term “hycean planet” to describe a theorised class of planet which hosts a liquid water ocean beneath a hydrogen-rich...

3847/1538-4357/abfd9c. S2CID 237290118. Anderson, Paul Scott (29 August 2021). "Hycean planets might be habitable ocean worlds". Earth & Sky. Retrieved 12 December...

In astronomy, a disrupted planet is a planet or exoplanet or, perhaps on a somewhat smaller scale, a planetary-mass object, planetesimal, moon, exomoon...

Volatile-rich planets should be more common in the habitable zones of young stars and M-type stars. Scientists have proposed Hycean planets, ocean planets with...

lists of planets. A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory of planet formation...

a list of planet types by their mass, orbit, physical and chemical composition, or by another classification. The IAU defines that a planet in the Solar...

be an ocean planet instead. Chthonian planet Hot Jupiter Hot Neptune Hycean planet Mega-Earth Sub-Neptune Super-Earth Super-Jupiter Planet Nine D'Angelo...

dust, planetesimals, asteroids or collision fragments in orbit around a planet. They are reservoirs of material out of which moons (or exomoons or subsatellites)...