Does Saturn's 'Death Star' Moon Harbor A Hidden Ocean?

It's not the prettiest thing in the solar system, nor is it the most interesting. But Mimas — a pockmarked moon in orbit around Saturn — does exhibit a rather strange wobble. A team of astronomers say there can only be one of two explanations: either it's harbouring a subterranean ocean or it has an irregularly shaped… » 10/17/14 10:20am 10/17/14 10:20am

The Seven Wonders of the Solar System

People like to make lists of things, especially lists of superlatives: the best, fastest, oldest, largest, heaviest and so on. There are lists of the ten fastest animals and the ten longest rivers and even of the ten highest-paid rock stars. The Guinness company created a small industry from publishing lists exactly… » 9/14/14 3:30pm 9/14/14 3:30pm

Saturn's moons could comprise "a veritable arcade" of Pac-Men

Astronomers now know that the Saturnian system has not one, but two "Pac-Man" moons — and there could be many, many more. » 11/28/12 8:00am 11/28/12 8:00am

And now for a little sense of scale

There's no two ways about it: hurricane Sandy is huge. With its whirling winds at one point stretching a mind blowing 1,100 miles in diameter, it's the most enormous Atlantic hurricane in recorded history. But Sandy - not to mention our entire planet - is still downright tiny compared to Saturn, and few images of the… » 10/30/12 12:10pm 10/30/12 12:10pm

10 Moons Every Person Should Know

Pretty much everyone can rattle off the names of our solar system's eight (formerly nine) planets, but ask the average person to list some moons and you'll be lucky if they can tell you more than two or three. » 3/12/12 12:03pm 3/12/12 12:03pm

The Rough Guide to Solar System Mountaineering

The great challenge for any climber is to conquer each continent's tallest mountain. But tomorrow's climbers can consider a far more extreme challenge: leaving Earth to climb the tallest peaks of the solar system. Here's how they'll do it. » 10/01/10 9:30am 10/01/10 9:30am

A Once-In-A-Generation Event Leads To Saturn's Rings Disappearing

Check out that flat shadow crossing Saturn's rings. It's the shadow of Mimas, one of Saturn's moons, and its appearance means we're getting closer to Saturn's equinox, when it'll be spring in the North and the rings will go dark. » 6/22/09 11:53am 6/22/09 11:53am

Saturn's Equinox Brings Shadows

Look at this photo of Saturn's rings from earlier this month. Wondering what those little jagged lines are, on top of the thick white band? They're shadows of Saturn ring debris. Click through for larger. » 4/18/09 11:00am 4/18/09 11:00am