Top 10 exoplanets in 2026 ranked: LHS 1140b, TRAPPIST-1e, K2-18b, TOI-700e, Proxima b, 55 Cancri e and more — distance, type, key fact, and JWST findings.
K2-18b sits 124 light-years away and JWST found possible dimethyl sulfide — a molecule made mostly by life on Earth. Here's the biosignature debate in full.
