Assessment of Isoprene as a Possible Biosignature Gas in Exoplanets with Anoxic Atmospheres

The search for possible biosignature gases in habitable exoplanet atmospheres is accelerating, although actual observations are likely years away. This work adds isoprene, C 5 H 8 , to the roster of biosignature gases. We found that isoprene geochemical formation is highly thermodynamically disfavor... View More