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K2‑18b, Hycean Worlds, and Dimethyl Sulfide

K2‑18b, Hycean Worlds, and Dimethyl Sulfide (DMS): Insights Into Exoplanet Habitability

The discovery and study of exoplanets like K2‑18b have revolutionized our understanding of where life might exist beyond Earth. Among the most promising candidates are Hycean worlds—planets with hydrogen-rich atmospheres and potentially water-covered surfaces. The James Webb Space Telescope (JWST) has provided tantalizing evidence of molecules like methane (CH₄), carbon dioxide (CO₂), and possibly dimethyl

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