On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he looked at Jupiter through his telescope, he saw what he thought were three tiny ...

What exists beneath the surface of Jupiter's icy moon, Callisto? This is what a recent study accepted by The Planetary ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

In a landmark observation by a team of international researchers, NASA's Juno spacecraft has, for the first time, clearly detected the auroras of Jupiter's moon Callisto. This discovery completes the ...

"Complete color global maps and high-resolution mosaics of Jupiter's four large moons - Io, Europa, Ganymede and Callisto - are compiled for the first time in this important atlas. The satellites are ...

Saturn reigns supreme when it comes to the number of moons orbiting any solar system planet. Including the 128 ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...