Jupiter's Moons

Jupiter has more than 60 known moons. The four largest, known as Galilean moons for their discoverer, Galileo Galilei, are Io, Europa, Ganymede, and Callisto. Ganymede is the largest moon in the solar system.


Jupiter's Moons Jupiter has 62 known moons. The four Galilean...
Jupiter Weather systems on Earth blow themselves out in...

Radio Programs

Moon and Jupiter A big moon takes a beating Tuesday, January 26, 2016
Moon and Jupiter The master of a busy domain Thursday, December 3, 2015
Moon and Jupiter Plunging into a hidden ocean Saturday, June 20, 2015
Moon and Jupiter Dipping into a giant hot tub Sunday, March 29, 2015
Moon and Jupiter Clouds of dust around a giant planet Thursday, November 13, 2014
Moon and Jupiter The heat of a twisted moon Friday, September 19, 2014
Fresh Ideas Looking for fresh ideas Thursday, July 3, 2014
Moon and Jupiter Big geysers on big moons Saturday, May 3, 2014
Lithopanspermia Catching a ride to the outer solar system Monday, March 31, 2014
Moon and Jupiter A giant, icy moon Tuesday, January 14, 2014
Moon and Jupiter An adventure traveler’s idea of heaven Friday, August 30, 2013
Soothing Moon Stirring up some epsom salts Sunday, May 26, 2013
Moon, Jupiter, and Aldebaran Jupiter’s large adopted family Monday, February 18, 2013
Moon and Jupiter A large, close-knit planetary family Sunday, February 17, 2013
Jovial Water Worlds Giant oceans around a giant planet Thursday, September 27, 2012
Moon and Companions II Dipping our toes in a giant ocean Friday, September 7, 2012
More Venus and Jupiter Worlds with and without companions Monday, March 12, 2012
Moon and Jupiter The master of a busy domain Monday, January 2, 2012
More Moon and Jupiter Following a mesmerizing moon Tuesday, December 6, 2011
Moon and Jupiter Painting a two-toned moon Monday, December 5, 2011
More Moon and Jupiter Painting a bullseye on a moon Thursday, October 13, 2011
Moon and Jupiter Heating up a big moon Wednesday, October 12, 2011
More Moon and Jupiter Reflections on an icy moon Friday, September 16, 2011
More Moon and Jupiter Heating up a volcanic moon Saturday, July 23, 2011
Moon and Jupiter Grand names for a grand planet Sunday, March 6, 2011
Moon and Jupiter Preventing alien contamination Sunday, January 9, 2011

Featured Images

A mosaic of spacecraft images shows the varied surface of Ganymede
Hiding an Ocean Saturday, June 20, 2015
View of Loki Patera, a lake of molten rock on Io, a moon of Jupiter
Hot Lake Sunday, March 29, 2015
Hubble Space Telescope view of Jupiter, Ganymede
Layer-Cake Moon Friday, August 15, 2014
Europa orbiter mission concept
Fresh Idea Thursday, July 3, 2014
Composite Galileo image of Jupiter's volcanic moon Io
Jovian Adventure Friday, August 30, 2013
Jupiter's Great Red Spot and the planet's four largest moons
An Eyeful of Moons Monday, January 2, 2012
Galileo spacecraft mosaic of Ganymede, largest moon of Jupiter
Two-Toned Moon Monday, December 5, 2011
The giant volcano Pele erupts on Jupiter's moon Io
Fire Mountain Thursday, October 13, 2011
Artist's concept of global ocean on Jupiter's moon Europa
Water World Friday, September 16, 2011


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