callisto
/kəˈlɪstoʊ/
nounThe second-largest moon of Jupiter, with an ancient, heavily cratered icy surface, discovered by Galileo Galilei.
“Callisto is thought to have a subsurface ocean beneath its icy crust.”
Synonyms: Jupiter IV, moon, satellite
The second-largest moon of Jupiter, with an ancient, heavily cratered icy surface, discovered by Galileo Galilei.
“Callisto is thought to have a subsurface ocean beneath its icy crust.”