Life on earth uses water as a solvent, but scientists have long speculated about the possibility of life existing in non-aqueous environments. Titan, Saturn's largest moon, has seas of liquid methane, and scientists at Cornell wanted to test whether structures similar to cell membranes could form on Titan. They took data from the Cassini probe to identify the compounds available on Titan, and performed computer simulations of these molecule to see whether they could form membrane-like structures. They found that one compound in particular, acrylonitrile, form bilayers that are very stable and have flexibilities very similar to cell membranes found on Earth. The researchers termed these structures "azotosomes." Here's the abstract and citation for the study: Stevenson, Lunine, and Clancy. (2015) Membrane alternatives in worlds without oxygen: Creation of an azotosome. Science Advances 1: e1400067. doi:10.1126/sciadv.1400067 Of course, membrane-like structures are only one requirement for life, so much work still needs to be done to determine how other aspects of life would work in a cryogenic solution of liquid methane. Furthermore, all of the work in this paper is computational, so the work awaits experimental confirmation that the azotosomes form and function as predicted by the authors' molecular dynamics simulations.