For others wondering about the term 'Hycean': The OP authors tell us (p.1), A new type of habitable exoplanet within the sub-Neptune regime was recently propo

For others wondering about the term 'Hycean': The OP authors tell us (p.1), A new type of habitable exoplanet within the sub-Neptune regime was recently proposed by Madhusudhan et al. (2021), known as Hycean worlds. Madhusudhan et al. 2021 [0] tell us (p.3), ... in this study we focus on planets that allow for large oceans with habitable conditions underneath H2 -rich atmospheres. We refer to such planets as "Hycean" worlds. I guess 'hydrogen' + 'ocean' = 'hycean'. There might be other explanations in Madhusudhan but I'm not reading the entire 25 pages to find them. The capitalization, used by both sources, is puzzling: is it named after a person or place? A sci-fi author, perhaps? Otherwise, it should be lowercase. Also, anyone inventing a word should be required to grace us with a pronunciation. What is the point of peer review if they don't catch these issues? ;) [0] https://iopscience.iop.org/article/10.3847/1538-4357/abfd9c https://iopscience.iop.org/article/10.3847/1538-4357/abfd9c