The Quiz: Which of Jupiter’s moons is the most cratered object in the solar system?
Callisto
Metis
Phoebe
Helene
Acting as the solar system’s pin cushion, Callisto was one of the four Jupiter moons discovered by Galileo (the others were Io, Europa, and Ganymede). It is Jupiter’s second-largest moon (behind Ganymede) and the third-largest moon in our solar system. Its 4 billion-year-old icy surface is the most heavily cratered object in the solar system.
The correct answer to this quiz is Callisto.