K2-18b Does Not Meet the Standards of Evidence for Life

K2-18b, a temperate sub-Neptune, has garnered significant attention due to claims of possible biosignatures in its atmosphere. Low-confidence detections of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS) have sparked considerable debate, primarily around arguments that their absorption featu...

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Bibliographic Details
Published in:The Astronomical Journal
Main Authors: Kevin B. Stevenson, Jacob Lustig-Yaeger, E. M. May, Ravi K. Kopparapu, Thomas J. Fauchez, Jacob Haqq-Misra, Mary Anne Limbach, Edward W. Schwieterman, Kristin S. Sotzen, Shang-Min Tsai
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Subjects:
Exoplanet atmospheres
Biosignatures
Exoplanets
Exoplanet atmospheric composition
Habitable planets
Astronomy data analysis
Online Access:https://doi.org/10.3847/1538-3881/ae0338

Internet

https://doi.org/10.3847/1538-3881/ae0338

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