Would it be possible to have a planet with a liquid water ocean that is always simmering but doesn't boil away completely?
Or would water vapor from the simmering ocean trigger a runaway greenhouse effect that boiled the ocean away? Would the ocean survive if the ocean was sufficiently big and deep, like on a Hycean world?
Asking if any #planetaryscientist or other #exoplanet #astronomer can tell me if a teakettle #planet is feasible.
