Saturn’s moon Enceladus has also been considered ... In size, Io is roughly comparable to the Earth’s moon, also known as “The Moon”. Io is wracked by volcanic activity though, with ...

Io is Jupiter’s third-largest moon ... Iapetus is often called the yin and yang of the Saturn moons because astronomer Giovanni Cassini discovered that one side of the moon is bright and ...

the Jupiter moon Io. Now, researchers from NASA's Jet Propulsion Laboratory (JPL) in Southern California suggest a similar ...

They should make a lovely pairing, with a pair of binoculars placed on Jupiter also revealing its four “Galilean” moons Callisto, Ganymede, Europa and Io ... in 1979, Saturn in 1981, Uranus ...

How many moons does Jupiter have? Scientists have discovered dozens of them, but the answer may be more complicated than it seems.