Jupiter has four large moons – Io, Europa, Ganymede and Callisto – with diameters of more than 3000 kilometres. However, as of April 2023, we know it is also home to 91 additional small satellites.

Io, the innermost of Jupiter’s four Galilean moons, is the most volcanic world in the solar system, giving it a dynamic mix of yellows, reds, and browns. Hyperion is one of the strangest moons ...

July 21, 2024 — Europa and Enceladus, icy moons of Jupiter and Saturn respectively, have evidence of oceans beneath their crusts. A NASA experiment suggests -- if these oceans support life ...

Earlier this week, Saturn gained a whopping 128 new official moons, as the International Astronomical Union recognised discoveries from a team of astronomers led by Edward Ashton at the Academia ...

Other moons of Jupiter, like Europa and Ganymede, have been considered far more likely candidates. That’s largely down to the fact that those moons play host to subsurface oceans. Given that we ...

Fluorescent caves deep below America show how alien life could exist on one of Jupiter's moons, say scientists. The chemistry in Wind Cave, South Dakota, means that, under an ultraviolet (UV ...