Saturn, Jupiter’s outer neighbour, currently has 83 known satellites. The four larger moons mentioned above, also known as the 'Galilean moons', account for 99.997 percent of the total mass of Jupiter ...

Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated observations over several nights and realized ...

The four biggest moons of Jupiter ... death dive into Jupiter's atmosphere in 1995. Galileo "did amazing science, but its data was so far afield from our models of Jupiter's water abundance ...

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable as Jupiter ...

Oc­cul­ta­tion of Jupiter and the Galilean moons – Io, Eu­ropa, Ganymede and Cal­lis­to – by Deimos, ob­served dur­ing Mars Ex­press or­bit 22,859, on 14 Febru­ary 2022. The dis­tance from Mars ...

Sunrise: 6:56 A.M. Sunset: 9:17 P.M. Moonrise: 4:25 A.M. Moonset: 1:42 P.M. Today starts a run of events taking place around mighty Jupiter, as its Galilean moons show off while they dance in ...

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 ...

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...