Pluto, the Icy Cold Dwarf Planet May Have Started Out as Steaming Hot

Because water is considered a vital ingredient for life, a subsurface ocean could make Pluto a long-shot candidate for harboring living organisms.

source https://www.news18.com/news/buzz/pluto-the-icy-cold-dwarf-planet-may-have-started-out-as-steaming-hot-2682527.html