New Analysis Weakens Claims of Life on Distant Exoplanet K2-18b

A new study led by University of Chicago researchers has reanalyzed James Webb Space Telescope data and found weaker evidence for potential biosignatures on exoplanet K2-18b. Earlier reports had suggested the presence of dimethyl sulfide (DMS), a chemical associated with marine life on Earth. However, the latest analysis reveals that the signals are inconsistent and c...

May 30, 2025 - 13:21
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New Analysis Weakens Claims of Life on Distant Exoplanet K2-18b
A new study led by University of Chicago researchers has reanalyzed James Webb Space Telescope data and found weaker evidence for potential biosignatures on exoplanet K2-18b. Earlier reports had suggested the presence of dimethyl sulfide (DMS), a chemical associated with marine life on Earth. However, the latest analysis reveals that the signals are inconsistent and c...