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 ...

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the solar system: Jupiter. At mid-twilight, roughly 45 minut ...

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, ...

Saturn's moons are much smaller than Jupiter's four large moons: Ganymede (the largest satellite in the Solar System), Callisto, Io and Europa, known collectively as the 'Galilean' moons after the ...

The brutal conditions also make Io intriguing to NASA scientists intent on learning more about the innermost and third-largest of Jupiter’s four Galilean moons. For nine years, a spacecraft ...

Firefly Aerospace's Blue Ghost lander is healthy on its way to the moon, and even witnessed a solar eclipse from space when Earth passed in front of the sun as seen from the spacecraft.

All together, they form a satellite system which is called the Jovian system. The most massive of the moons are the four Galilean moons: Io; Europa; Ganymede; and Callisto, which were independently ...