Why the Length of Saturn's Day Is So Hard to Measure 

The length of a planet's day seems like such a simple number, a basic piece of information that should accompany any solar system diagram. But probes flying past Saturn have turned up oddly conflicting numbers. » 3/25/15 5:00pm Wednesday 5:00pm

How Many Rings Do You See In This Image of Saturn?

We all know that Saturn is the planet with the rings, but how many did you think there were? In this photo, by the Cassini spacecraft on January 8, 2015, you can spend a good couple of hours trying to count them. » 3/17/15 3:00am 3/17/15 3:00am

A Warm Seafloor On Enceladus Makes It A Prime Candidate For Life

A new analysis of Cassini spacecraft data points to the distinct possibility that Saturn's icy moon Enceladus exhibits hydrothermal activity on its seafloor. It's a discovery that significantly bolsters the moon's status as a potentially habitable object. » 3/12/15 8:20am 3/12/15 8:20am

It's Time to Go Alien Hunting on Titan

Move over Europa, there's another moon out to claim the title of first place we'll discover extraterrestrial life. New research from Cornell University finds that alien microbes could, just maybe, eek it out on Saturn's largest moon, Titan. But these critters wouldn't be like anything we've ever seen before—not even… » 3/01/15 4:00pm 3/01/15 4:00pm

How NASA Might Use A Robotic Sub To Explore Titan's Methane Seas

At a recent advanced concepts symposium, NASA scientists unveiled a conceptual plan to explore the frigid methane and ethane seas on Saturn's largest moon, Titan, using a robotic submarine. » 2/11/15 1:55pm 2/11/15 1:55pm

Here's What It Looks Like To Fall To Titan From Space

In honor of the Huygens probe's historic 2005 landing on the surface of Titan (Saturn's largest satellite, and the only moon in our solar system with a dense atmosphere), NASA has released a movie that recreates, with data collected by Huygens and the Cassini orbiter, a dramatic approach of the moon's surface from… » 1/14/15 2:30pm 1/14/15 2:30pm

We've Been Wrong About Saturn's Exact Location For Centuries

Looking at a map of our solar system, you might have felt comfortable saying that we know (and have known for sometime) exactly where Saturn is. But a brand new ultra-precise measure that tracks the location of the planet to its exact pinpoint in space shows that we've been off, by perhaps up to 100 miles. » 1/12/15 9:40am 1/12/15 9:40am

Two Of Saturn's Moons Play Hide-And-Seek In This Stunning Image

Ever get the feeling that someone is staring over your shoulder? The Cassini spacecraft captured this rare view of Saturn's moon Tethys peeking out from behind its sibling, Rhea. Tethys appears brighter because its surface is covered in ice, which gives it a higher albedo, or reflectivity. » 12/26/14 6:30am 12/26/14 6:30am

One Reason To Be Optimistic About The Near Future Of Space Exploration

In the early '80s, Voyager did a flyby of Saturn's moons and sent us back some tantalizing, but garbled, photos. Now, those same pictures are giving us one really great reason to feel pretty good about just what we might be able see in the next few decades. » 12/16/14 11:40am 12/16/14 11:40am

Saturn's Moons As You've Never Seen Them

What you're seeing here is an image of Saturn's moon Dione as it passes in front of the moon Titan. The detail is breathtaking, and you can just see the haze of Titan's atmosphere glowing around the curve of the lake-covered moon. » 12/09/14 7:00pm 12/09/14 7:00pm

We Can Thank Saturn for Helping Life to Evolve on Earth

Models show that if the ringed planet's orbit was just 10% closer in, or even just slightly tilted, its mass would have tugged the Earth into a wildly elongated orbit, causing it to spend part of each year outside the habitable zone. » 11/24/14 3:40pm 11/24/14 3:40pm

Stunning New Image Shows Saturn And Titan Shrouded In Darkness

In stark contrast to the brilliant colors of Saturn's rings and the sunlit hydrocarbon seas of Titan, this image taken by the Cassini spacecraft makes them appear as menacing alien worlds. To us, they seem devoid of detail. But to the trained eyes of scientists, such images reveal crucial insights. » 11/10/14 9:20am 11/10/14 9:20am

A Stunning View Of Sunlit Seas On Titan

As NASA's Cassini spacecraft soared past Saturn's moon Titan, it recently caught a glimpse of bright sunlight reflecting off hydrocarbon seas. In the past, Cassini had captured, separately, views of the polar seas and the sun glinting off them, but this is the first time both have been seen together in the same view. » 10/31/14 6:40am 10/31/14 6:40am

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

Titan's Enigmatic "Magic Island" Continues To Baffle Scientists

Remember that bizarre "magic island" on Titan's northern seas? The one that suddenly emerged and then inexplicably disappeared? Well, it's baaa-aaack — and it's changed. » 9/30/14 10:40am 9/30/14 10:40am

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

A Multi-Year Sunny Spell on Titan Ends With Methane Clouds

During a flyby in July, Cassini recorded clouds drifting across the largest moon of Saturn, Titan. This may be the kickoff of summer storms on the massive moon, the first time researchers have observed cloud formation since 2010. » 8/13/14 8:00am 8/13/14 8:00am

A Mysterious "Magic Island" Has Appeared On Titan

Saturn's largest moon has truly strange geography. Astronomers working on the Cassini mission recently observed the sudden appearance of a bright, mysterious object in one of Titan's northern seas — only to watch it disappear again. Uncertain as to what it is, the researchers offered four explanations. » 6/23/14 8:00am 6/23/14 8:00am

NASA Has Figured Out What Titan Smells Like

Good news, everyone! A recent lab experiment by NASA scientists has revealed the precise aromatic quality of Saturn's largest moon, Titan. And like a fine wine, it has a "strong aromatic character." » 6/16/14 1:40pm 6/16/14 1:40pm