December 8, 2020 updates Posted on December 8, 2020 by Doug Loss Slow Biospheres: Habitability over the Longue Durée https://youtu.be/C2cyeGIJTnw Using Earth’s history to inform the search for life on exoplanets https://news.ucr.edu/articles/2020/12/08/using-earths-history-inform-search-life-exoplanets Architectures of Exoplanetary Systems. II. An Increase in Inner Planetary System Occurrence toward Later Spectral Types for Kepler’s FGK Dwarfs https://iopscience.iop.org/article/10.3847/1538-3881/abc68b An Integrated Analysis with Predictions on the Architecture of the τ Ceti Planetary System, Including a Habitable Zone Planet https://iopscience.iop.org/article/10.3847/1538-3881/abc560 A medium-resolution spectrum of the exoplanet HIP 65426 b https://arxiv.org/abs/2012.02798 Formation of multiple-planet systems in resonant chains around M dwarfs https://arxiv.org/abs/2012.03469 Parking planets in circumbinary discs https://arxiv.org/abs/2012.03651