Oxygenation, Life, and the Planetary System during Earth’s Middle History: An Overview
https://liebertpub.com/doi/10.1089/ast.2020.2418
Assessment of Ammonia as a Biosignature Gas in Exoplanet Atmospheres
https://arxiv.org/abs/2107.12424
The Keck Planet Imager and Characterizer: A dedicated single-mode fiber injection unit for high resolution exoplanet spectroscopy
https://arxiv.org/abs/2107.12556