Sparkle, a space friend
Dipper, a space friend
Hoodie, a space friend
Dark space around Jupiter
Page 12 · Four great moons

Jupiter’s Moons

Io, Europa, Ganymede, and Callisto are four very different worlds circling the same giant planet.

Part of Jupiter behind its moons Faint blue sulfur-dioxide plume rising from IoExplanatory view of water beneath Europa's iceAurora over Ganymede Ari presenting Jupiter's moonsAri pointing to Io's plumeAri studying Europa's iceDot comparing the four moonsDot discovering Europa's hidden oceanDot tracing Ganymede's aurora