"Jupiter's Moons and Satellites: A Spectacular Night Sky Show"

NASA's Astronomy Picture of the Day shows Jupiter's two largest moons, Europa and Io, crossing the gas giant and its Great Red Spot, captured by NASA's Cassini spacecraft. Io is the third-largest of Jupiter's four Galilean moons, while Europa is the smallest but has more water than Earth. The spacecraft used the Visual and Infrared Mapping Spectrometer (VIMS) to capture the image. Jupiter is currently being visited by NASA's robotic Juno spacecraft, while ESA's Jupiter Icy Moons Explorer (JUICE) is en route.