A huge haul of 128 newfound satellites might be a hint of past collisions in the planet’s orbit, or something else.

Astronomers have uncovered new evidence that Jupiter’s moon Callisto likely harbors a massive underground ocean, potentially ...

The thickness of Europa’s ice shell and its interaction with the ocean below. ・The composition of the moon’s surface to determine if it contains key ingredients for life. ・The geological ...

“Such an estimate is indeed questionable, because we do not know what the ring composition was when ... Clipper mission to study Jupiter’s moon Europa, which is similarly dynamically linked ...

Beyond just measuring Ceres’ surface features, the Dawn mission provided crucial data about the dwarf planet‘s composition through various ... like Jupiter’s moon Europa and Saturn’s moon Enceladus.” ...

The results of Hera's fly-by could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

A theory involving a "mushy zone" of ice along the moon’s fissures could explain the enormous plumes erupting from its south ...

NASA has been preparing for their Europa Clipper mission since 2013, when the mission’s pre-project was approved. The spacecraft is roughly the length of a basketball court, making it the ...

It was a history making launch -- when NASA’s Europa Clipper embarked on its long five-year voyage to Jupiter. The $5 billion spacecraft is the largest ever built for a mission headed to another ...