Preliminary Evidence for Sulfur-Based Biosignatures (DMS and DMDS) on the Hycean Exoplanet K2-18b
To the point
James Webb Space Telescope data hint at sulfur-based biosignatures, dimethyl sulfide and dimethyl disulfide, in the atmosphere of K2-18b, a Hycean world with a vast ocean, but the finding is preliminary, requires five-sigma confirmation and independent replication, and Nikku Madhusudhan and Subhajit Sarkar caution about non-biological explanations.
