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

Saturn, Jupiter’s outer neighbour, currently has 83 known satellites. The four larger moons mentioned above, also known as the 'Galilean moons', account for ... was discovered during the flybys of the ...

These pinpricks of light are actually Jupiter's four largest moons, now known as the Galilean moons ... In 1979, NASA's Voyager 1 and 2 spacecraft zipped by the gas giant, taking tens of thousands ...

The Voyager 1 spacecraft had flown past this moon of Jupiter, catching the first glimpse of active volcanism on a world other than Earth. Umbrella-shaped outbursts of magmatic matter rocketed into ...

With the exception of Titan, however, 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 ...

How do you spot moons, and why hadn’t anybody seen these ones already? Doesn’t Jupiter have the most ... “ring-plane crossings”. When the Voyager 1 spacecraft passed by Saturn, it took ...

Since Voyager 1 blasted off in 1977, it has skirted past the kaleidoscopic clouds of Jupiter and the icy rings ... brightness of more than a dozen full moons. The Sun makes its sphere of influence ...

In the 1970s, NASA's Voyager probes passed through Jupiter's system and snapped pictures of its largest moons, also known as the Galilean moons. These pictures and the data they gathered offered ...

Sunrise: 6:56 A.M. Sunset: 9:17 P.M. Moonrise: 4:25 A.M. Moonset: 1:42 P.M. Today starts a run of events taking place around mighty Jupiter, as its Galilean moons ... has finally taken the lead ...

"Voyager was a defining part of the '80s, with its grand tour of the outer planets and its tie-in to Carl Sagan's 'Cosmos.' In the '90s, Galileo gave us a dramatic look at Jupiter and its moons.

The goal is to reach Europa, the smallest of the planet's four Galilean moons ... at Jupiter is July 2031, roughly a year after Clipper.) Europa Clipper's flyby of Mars on March 1 will bring ...