Ganymede is the largest moon of Jupiter
Ganymede is the largest moon of Jupiter. It is also the largest moon in the Solar System. Ganymede is larger in diameter than Mercury, but has only about half its mass. Ganymede is much less dense. Ganymede is part of a group called the Galilean Satellites. These also include Io, Europa and Callisto.
Galileo Galilei discovered this moon in 1610. Simon Marius suggested the name Ganymede soon after. In Greek mythology, Ganymede was Zeus’ cup-bearer. Ganymede is the only Galilean moon of Jupiter named after a male figure.
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