Ganymede isn't "hidden"; it is just too close to Jupiter to see it without a telescope.
When Galileo pointed his telescope at Jupiter, he was astonished to find four other small things that appeared to stay close to Jupiter. They were named Ganymede, Callisto, Europa and Io, and are sometimes called the "Galilean moons". Day by day, you can see them orbiting Jupiter, their positions different each day.
Ganymede is a moon
Ganymede
ganymede
No. Ganymede does not have any volcanoes.
Ganymede is a redish orangeish color
Galileo discovered Ganymede in 1610. Ganymede is the largest moon in the solar system and belongs to Jupiter.
Ganymede is the largest moon of Jupiter.
No. Ganymede has a very tenuous atmosphere.
The Ganymede Takeover was created in 1967.
The Goddess of Ganymede was created in 1967.
Ganymede is a moon of Jupiter.
No. The entire surface of Ganymede is ice.