Their study, published in the journal *Geophysical Research Letters*, shows that the threshold theory, used to study Earth's ...

It turns out that getting an atmosphere—and holding on to it—really comes down to how big and how close to the sun you are (or, for Titan, how close you are to a really big planet).

In the upper layer of Titan's atmosphere, visible here in blue light, methane molecules are being dissociated by sunlight and recombining into ethane and acetylene molecules. Further down ...

Cassini used synthetic aperture radar (SAR) to look through Titan's thick atmosphere during these close encounters and found channels and large flat areas that are consistent with large bodies of ...

The spacecraft will carry a suite of instruments, including cameras, mass spectrometers, and samplers, to analyze Titan’s atmosphere and surface composition, looking for signs that might ...

Ride along on the outside of Huygens as it parachutes through Titan's atmosphere at nearly 200 miles per hour. Sound is basically pressure waves that are moving through some medium. So the sound ...

While all the ingredients are there, the moon's composition likely prevents them from coming together in any meaningful way.

On its way down, Huygens collected valuable data on Titan's dense atmosphere, finding a host of photochemical reactions — light-driven chemical reactions that shape the moon's chemical ...