February 11, 2020 updates Posted on February 11, 2020June 28, 2020 by Doug Loss What is Paradoxical About ‘Fermi’s Paradox’? https://link.springer.com/article/10.1007/s10441-020-09376-x Improving transit characterisation with Gaussian process modelling of stellar variability https://www.aanda.org/articles/aa/abs/2020/02/aa36086-19/aa36086-19.html Atmospheric Erosion by Giant Impacts onto Terrestrial Planets https://arxiv.org/abs/2002.02977 Propulsion of Spacecrafts to Relativistic Speeds Using Natural Astrophysical Sources https://arxiv.org/abs/2002.03247 Implications of Abiotic Oxygen Buildup for Earth-like Complex Life https://arxiv.org/abs/2002.03248 ExoSim: the Exoplanet Observation Simulator https://arxiv.org/abs/2002.03739 Radio eclipses of exoplanets by the winds of their host stars https://arxiv.org/abs/2002.03901 HD 191939: Three Sub-Neptunes Transiting a Sun-like Star Only 54 pc Away https://arxiv.org/abs/2002.03958