Ganymede was discovered by Galileo Galilei on January 7,1610 using a Hubble Space Telescope. It was the first time a moon was discovered not going around the Earth.

Why is Ganymede important

>Galileo saw the moon orbit Jupiter to prove Earth orbit the Sun.

>Ganymede has a ice water surface that mean it can has living things on it.

What is ganymede

Ganymede is a moon from Jupiter.It is the largest moon in the Solar System.