Ammonia as a Detectable Biosignature on Cold Haber World Exoplanets Around M-Dwarfs
To the point
Sukrit Ranjan and colleagues show that on hydrogen-rich exoplanets around small, cool red dwarfs biology could build up ammonia to detectable levels despite atmospheric sinks, enabling JWST to detect ammonia in about two transits over two months and broadening the search for life beyond oxygen.
