[deep research] “Cambridge Astronomer Nikku Madhusudhan Unveils Groundbreaking Discoveries

On April 16, 2025, the astronomical community celebrated the groundbreaking discovery of potential biosignatures on the exoplanet K2-18b, located roughly 120-124 light-years away in the constellation Leo. Initially discovered in 2017, K2-18b has drawn renewed attention following a study led by astronomer Nikku Madhusudhan, which identified dimethyl sulfide (DMS) and dimethyl disulfide (DMDS) in its atmosphere—molecules linked to biological processes on Earth. This marks the first detection of potential signs of life on a habitable planet, a claim emphasized by Madhusudhan as a “revolutionary moment.” However, experts urge caution, noting that these findings do not confirm habitability, as DMS could arise from non-biological processes. The James Webb Space Telescope’s (JWST) capabilities have been pivotal in this discovery, enhancing the analysis of distant planets. Despite the excitement, scientists like Stephen Schmidt stress the necessity for further research, as current findings are

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