At the 2019 Astrobiology Science Conference being held in Bellevue, Washington, Morgan Cable of NASA’s JPL presented the results of a study conducted with other researchers on Titan, Saturn’s largest moon. This team recreated in lab some conditions existing in the lakes of methane and other hydrocarbons of Titan, discovering that a co-crystal of solid acetylene and butane could be produced with the formation of ring-shaped deposits around those lakes similarly to salt deposits which are produced when water evaporates in the Earth’s seas. Those co-crystals could be used by exotic life forms in a way similar to carbon dioxide on Earth.