Discovered in 1610 by Galileo Galilei, these moons—Ganymede, Callisto, Io, and Europa—have diverse characteristics, from volcanic activity to subsurface oceans, making them significant objects ...

ESA's Mars Express orbiter captured footage of the Mars' moon Deimos pass in front of Ganymede, Europa, Jupiter, Io and ...

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.

It's tugged in all directions during its orbit by the gravity of Jupiter and the three other Galilean moons (Europa, Ganymede and Callisto). The friction builds up heat inside Io and causes ...

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...

It will then spend three and a half years studying the icy satellites of Ganymede, Europa and Callisto, but also conduct 67 orbits of Jupiter. “The first element of the mission is a three-year ...

But during Juno's extended mission, the mission team also used the instrument to study the moons Io, Europa, Ganymede, and Callisto. The JIRAM Io imagery showed the presence of bright rings ...

NASA’s Juno spacecraft has uncovered an immense volcanic hot spot on Jupiter’s moon Io, surpassing any previously recorded eruptions in the solar system. This fiery inferno, detected by the JIRAM ...