December 23, 2019 updates Posted on December 23, 2019June 28, 2020 by Doug Loss Probable cold and alkaline surface environment of the Hadean Earth caused by impact ejecta weathering https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019GC008734 OGLE-2013-BLG-0911Lb: A Secondary on the Brown-Dwarf Planet Boundary around an M-dwarf https://arxiv.org/abs/1912.09613 SVEEEETIES: Singular vector expansion to estimate Earth-like exoplanet temperatures from infrared emission spectra https://arxiv.org/abs/1912.09706