Polycyclic Aromatic Hydrocarbons as an Extraterrestrial Atmospheric Technosignature
Dwaipayan Dubey et al 2025 Planet. Sci. J. 6 4
Polycyclic aromatic hydrocarbons are created through human industrial activity and are a potential technosignature; however, research suggests that detecting these molecules in exoplanet atmospheres is infeasible.