The large impact crater Valhalla is located on one of these objects, and another contains Conamara Chaos, which is a region of chaotic terrain.
The large impact crater Valhalla is located on one of these objects, and another contains Conamara Chaos, which is a region of chaotic terrain. Some of these objects are divided into Ananke [uh-NAN-kee] and Carme [KAHR-mee] groups. One of these objects is the namesake of a plasma current, and is the most volcanically active body in the solar system. The largest of these objects is unique for having a magnetosphere, and is named for a figure from Greek myth who is cupbearer to the gods. Galileo discovered four of these objects: Callisto, Europa, Io, and Ganymede. For 10 points, name these satellites that orbit the largest planet in the solar system.
The large impact crater Valhalla is located on one of these objects, and another contains Conamara Chaos, which is a region of chaotic terrain.
moons of Jupiter [prompt on partial answers; accept equivalents]