A Geologically Robust Procedure For Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen is an Earth-Like Biosignature

Carey M. Lisse, Steven J. Desch, Cayman T. Unterborn +7

In the next decades, the astrobiological community will debate whether the first observations of oxygen in an exoplanet${}^{\prime }$s atmosphere signifies life, so it is critical to establis…