Of all the moons of Jupiter, Callisto, Ganymede, Europa and Io tantalize us the most. These alien worlds of ice, fire, desolation and hidden oceans tantalize us with their possibility for extraterrestrial life and human exploration of the outer solar system. Join Robert and Joe for a mind bending exploration of the great gas giant's Galilean Moons.
Jupiter's Children: A Voyage to the Galilean Moons
Main Image Caption: Artist's Concept of Jupiter Encounter (NASA Ames Resarch Center/Wikimedia Commons)
Secondary Image Caption: The four Galilean moons of the planet Jupiter, photographed by the Galileo spacecraft, circa 1996. From left to right, they are Europa, Io, Callisto and Ganymede. (Space Frontiers/Hulton Archive/Getty Images)
Gazing into the Eclipse (podcast)