The King of the Planets teams up with an exceedingly narrow crescent moon for the last time this year in the evening sky on May 27.

Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

Each of Jupiter's other 91 official moons has a diameter greater than 0.6 mile (1 kilometer) — but only 57 have names, and just eight have regular, nearly round orbits.

Each of Jupiter's other 91 official moons has a diameter greater than 0.6 mile (1 kilometer) — but only 57 have names, and just eight have regular, nearly round orbits.

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

The icy surface of Jupiter 's moon Europa appears to be constantly changing, new data from the James Webb Space Telescope has revealed. This phenomena, the team explained, is heightened in so-called ...

Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...

Jupiter is a huge planet with a ridiculous number of moons. And now, thanks to new research, that number just became even more ridiculous. Scientists have discovered 10 never-before-seen moons of ...