The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a ...

The Pleiades, Ptolemy's Cluster, the Large Magellanic Cloud — here's how to center the sky's brightest deep-sky wonders in ...

Saturn has decisively claimed the crown. With the discovery of 128 new moons, the ringed planet’s total count has soared to 274 — nearly twice as many as all other planets combined. Jupiter now trails ...

The objects around the ringed planet are tiny ... Many of these moons are rocks only a few miles across — small compared with our moon, which is 2,159 miles across. But as long as they have ...

Turns out, there’s a lot more floating around the planet Saturn than those famous rings. Space scientists announced last week they’ve discovered Saturn has 128 more moons, for a total of 274, far more ...

The International Astronomical Union formally recognised all of Saturn’s moons this week. The moons are yet to get names but ...

The sheer number of objects suggests scientists will ... IAU consider anything with a traceable orbit around a host body good enough to be a moon, as the New York Times reports.

Saturday finds the moon in a waxing gibbous phase. Of all the phases that the moon goes through over 29.5 days, a waxing ...

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

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