A decade after landing on Titan, data from the Huygens probe is helping scientists understand how the atmosphere of Saturn’s mysterious moon was formed.

The study, “Noble gases, nitrogen, and methane from the deep interior to the atmosphere of Titan,” was published in the journal Icarus by lead author Christopher Glein. Glein was member of the former NAI Team at Arizona State University and is now a postdoctoral researcher at the University of Toronto in Canada.