https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. New experimental results have cast doubt on earlier proposals suggesting that spherical, cell-like membranes could form in the methane lakes of Saturn's largest moon. Through results published in Science Advances, Tuan Vu and Robert Hodyss at NASA's Jet Propulsion Laboratory suggest that exobiologists will likely need to explore alternative routes when considering the possibility of life on Titan. https://phys.org/news/2026-03-hypothesis-cell-membranes-titan.html Astrobiology Tue, 17 Mar 2026 13:20:01 EDT news692963909 Astrobiologists are focused on resolving two central questions to understand the environmental and chemical limits of life. By understanding life's boundaries, they intend to identify possible biosignatures in exoplanet atmospheres and in the solar system. For example, the lipid bilayer membrane is a central prerequisite for life as we know on Earth. Preceding studies based on simulations of molecular dynamics have suggested that polarity-inverted membranes known as azotosomes made of small nitrogen-containing molecules may be kinetically abundant on cryogenic liquid worlds such as Saturn's moon Titan. https://phys.org/news/2020-02-polarity-inverted-membranes-self-assemble-saturn-moon.html Space Exploration Fri, 07 Feb 2020 09:30:01 EST news500281610 NASA researchers have confirmed the existence in Titan's atmosphere of vinyl cyanide, which is an organic compound that could potentially provide the cellular membranes for microbial life to form in Titan's vast methane oceans. If true, it could prove to us that life can flourish without the ubiquitous H2O. https://phys.org/news/2018-02-titan-hydrocarbon-soup-recipe-life.html Space Exploration Thu, 01 Feb 2018 08:00:46 EST news436694436 NASA scientists have definitively detected the chemical acrylonitrile in the atmosphere of Saturn's moon Titan, a place that has long intrigued scientists investigating the chemical precursors of life. https://phys.org/news/2017-07-scientists-moon-saturn-chemical-membranes.html Space Exploration Fri, 28 Jul 2017 15:01:00 EDT news420472850 A new type of methane-based, oxygen-free life form that can metabolize and reproduce similar to life on Earth has been modeled by a team of Cornell University researchers. https://phys.org/news/2015-02-life-saturn-moon-titan.html Space Exploration Fri, 27 Feb 2015 17:18:04 EST news344279869