Two new studies have strengthened the case that Saturn’s moon Enceladus could support life – and that finding its traces may be easier than thought. Published in Science Advances on 25 September 2026, the first study found that the Earth microbe Methanothermococcus okinawensis could grow and produce methane under simulated Enceladus ocean conditions, including high alkalinity and very low carbon dioxide.

Growth was 100 times better than in standard laboratory medium at pH 10. The second study, led by Frank Postberg of Freie Universitaet Berlin, reanalysed Cassini data and found that plume droplets freeze slowly as they rise through the moon’s fractures, fragmenting and concentrating salts and organics into individual ice grains.

That means a future spacecraft sampling the plumes could find grains rich in biosignatures that existing instruments could detect. Neither study found actual life on Enceladus. But together they improve the odds for future missions planned for the late 2030s and early 2040s.