Webb Telescope Reveals Potential Signs of Life on Distant Exoplanet

Methane and carbon dioxide discovered in the atmosphere of exoplanet K2-18 b, 120 light years away.
Possible presence of dimethyl sulfide raises prospects of biological processes occurring on the planet.
K2-18 b is likely a "Hycean" world covered by a global ocean beneath a hydrogen-rich atmosphere.
The exoplanet orbits in the habitable zone but challenges remain regarding its ability to support liquid water.
Further observations needed to confirm biosignatures and understand K2-18 b's environment and habitability.