New analysis casts doubt on 'biosignatures' found on planet K2-18b

Researchers using data from the James Webb Space Telescope recently announced they had detected biosignature gases on planet K2-18b. A new analysis of the same data casts doubt on the earlier findings

Apr 25, 2025 - 11:12
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New analysis casts doubt on 'biosignatures' found on planet K2-18b
Scientists are debating whether data from the James Webb Space Telescope is really pointing to biosignature gases in the atmosphere of planet K2-18b.

Researchers using data from the James Webb Space Telescope recently announced they had detected biosignature gases on planet K2-18b. A new analysis of the same data casts doubt on the earlier findings

(Image credit: Adriana M. Gutierrez (CI Lab)
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