July 31, 2019 updates Posted on July 31, 2019June 28, 2020 by Doug Loss Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization https://arxiv.org/abs/1904.12818 Characterizing K2 Candidate Planetary Systems Orbiting Low-mass Stars. IV. Updated Properties for 86 Cool Dwarfs Observed during Campaigns 1–17 https://iopscience.iop.org/article/10.3847/1538-3881/ab2895 Properties of the Interstellar Medium along Sight Lines to Nearby Planet-hosting Stars https://iopscience.iop.org/article/10.3847/1538-4357/ab1f6d Photosynthesis on Exoplanets and Exomoons from Reflected Light https://arxiv.org/abs/1907.12576 Flaring activity of Proxima Centauri from TESS observations: quasi-periodic oscillations during flare decay and inferences on the habitability of Proxima b https://arxiv.org/abs/1907.12580 Effects of primitive photosynthesis on Earth’s early climate system https://arxiv.org/abs/1907.12995 Anoxygenic photosynthesis and the delayed oxygenation of Earth’s atmosphere https://arxiv.org/abs/1907.13001 Dealing With δ-Scuti Variables: Transit Light Curve Analysis of Planets Orbiting Rapidly-Rotating, Seismically Active A/F Stars https://arxiv.org/abs/1906.01029