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

With the knowledge that these were probably moons and that there were likely even more waiting to be discovered, we revisited the same sky fields for three consecutive months i ...

Scientists estimate the total mass of the rings to be around 1.5 × 10¹¹ kilograms ... due to resonances with Saturn’s internal gravity waves. This accelerated evolution suggests that some ...