Encyclopedia > Galilean moon

Article Content

Galilean moon

The Galilean moons are the moons of Jupiter discovered by Galileo Galilei (because they were visible with the low-power telescope he invented). They were first observed by Galileo on January 7, 1610. In order from closest to Jupiter to farthest away, they are:

the volcanic Io
oceanic Europa
oceanic Ganymede
oceanic Callisto

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Lake Ronkonkoma, New York

... (4.9 mi²). 12.7 km² (4.9 mi²) of it is land and none of the area is covered with water. Demographics As of the census of 2000, there are 19,701 people ...