Insights into Titan's methane cycle and coupled climate system

Titan, Saturn’s large moon, has a massive nitrogen atmosphere that hosts a vigorous methane cycle through which we can probe various aspects of the climate and paleoclimate of this this uniquely Earth-like world. Recent work has revealed the importance of the surface, hydrology and the distribution of surface liquid on Titan’s climate system; furthermore, many types of surface features—in addition to piecemeal observations of atmospheric phenomena—offer glimpses into the behavior of the atmosphere and its evolution. I will discuss some facets of Titan’s atmospheric circulation, surface–atmosphere interactions, and the indications we have of long-term climate change.