Unraveling the Mysteries of Jupiter's Neglected Moon, Callisto

Callisto, one of Jupiter's least studied moons, has long remained a mystery to scientists. A new study reveals that Callisto has more molecular oxygen in its atmosphere than previously thought, suggesting that the moon is forming O2 in some other way. Despite not being a candidate for life due to its cold temperatures and lack of intrinsic magnetosphere, Callisto does harbor water in the form of ice. Understanding Callisto is crucial for exploring other large, icy moons in the Jovian system, and upcoming missions like NASA's Europa Clipper and the European Space Agency's Jupiter Icy Moons Explorer will provide more insights.