NASA’s Juno Spacecraft Detects Callisto’s Aurora, Completing Jupiter’s Galilean Moons Set

NASA’s Juno spacecraft has captured Callisto’s elusive auroral footprint, completing the “family portrait” of Jupiter’s Galilean moons. Each moon carves its own aurora into the gas giant’s poles, revealing how they interact with Jupiter’s powerful magnetosphere. Callisto’s faint arc appeared during a 2019 flyby, finally confirming its mark.