May 19, 2020 updates Posted on May 19, 2020June 28, 2020 by Doug Loss An objective Bayesian analysis of life’s early start and our late arrivalhttps://www.pnas.org/content/early/2020/05/12/1921655117 Artificial Gravity in Interstellar Travelhttps://zenodo.org/record/3747351 Planetary Spin and Obliquity from Mergershttps://arxiv.org/abs/2005.07718 Atmospheric Escape of Close-in Giants around Hot Stars: Far-Ultraviolet Radiation and Photoelectric Heating Effecthttps://arxiv.org/abs/2005.08676 Super-Rayleigh Slopes in Transmission Spectra of Exoplanets Generated by Photochemical Hazehttps://arxiv.org/abs/2005.08880