Extraterrestrial Life Chemical Signatures Subsurface Oceans Organic Compounds Biosignatures Dimethyl Sulfide Biomarkers Atmospheric Studies Molecules Organic Molecules Geological Processes Molecular Signatures Chemical Signals Molecular Biology Planetary Atmospheres NASA Missions Research Methodologies Microbial Motility
Recent re-analyses of JWST data challenge the detection of life-linked molecules, citing noise and alternative chemical explanations.