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

Saturn may have played a key role in the birth of Jupiter's largest moons, a new study finds. This discovery may shed light on whether potentially habitable giant moons could form around alien ...

Jupiter, the largest planet in our Solar System, is 11 times wider than Earth, and has a mass 2.5 times greater than all of ...

Together, these four moons comprise more than 99.9 percent of the mass of Jupiter's satellites. Each of them has a distinctive character, and they all present vexing scientific puzzles.

The biggest planet in the solar system, Jupiter, also boasts the most moons, with 64 currently catalogued. Most of these moons are tiny, lumpy rocks — apparently asteroids captured by Jupiter's ...

By carefully simulating the effects of Jupiter’s boosted luminosity on the Galilean moons, Bierson and his colleagues found this flood of light could neatly resolve the puzzle of the satellites ...

Jupiter's satellites orbit the planet at three different distances. Circling closest are the four largest, aka "Galilean," moons. Farther out, at a distance of around 6 million miles, is a ...

There's a new moon king in our solar system: 12 new moons were discovered around Jupiter, which makes it the planet with the most moons. Jupiter is already the biggest planet in our solar system.

Jupiter already reigns as king of the planets — it’s the largest one in our solar system. And now, the gas giant has the most known moons, too. Astronomers have observed 12 additional moons ...

The first astronomer to discover moons around Jupiter was Galileo, back in the year 1610, but astronomers are still finding more and more moons around this gas giant. Accessibility links.

Jupiter's four largest moons — Io, Europa, Ganymede and Callisto — are also known as the Galilean moons, named after Galileo Galilei, who discovered them in 1610.