August 6, 2019 updates Posted on August 6, 2019June 28, 2020 by Doug Loss Parameterizing the Search Space of Starshade Fuel Costs for Optimal Observation Schedules https://arc.aiaa.org/doi/10.2514/1.G003747 Space travel might fry your brain, causing permanent learning and memory problems https://phys.org/news/2019-08-space-brain-permanent-memory-problems.html New concerns for neurocognitive function during deep space exposures to chronic, low dose rate, neutron radiation https://www.eneuro.org/content/early/2019/08/05/ENEURO.0094-19.2019 Analytical estimates of secular frequencies for binary star systems https://arxiv.org/abs/1908.01048 Eccentricities and the Stability of Closely-Spaced Five-Planet Systems https://arxiv.org/abs/1908.01117 Atmospheric characterization of terrestrial exoplanets in the mid-infared: biosignatures, habitability & diversity https://arxiv.org/abs/1908.01316 Expected performances of the Characterising Exoplanet Satellite (CHEOPS). I. Photometric performances from ground-based calibration https://arxiv.org/abs/1908.01636 Unexpected gap creating two peaks in the periods of planets of metal-rich sunlike single stars https://arxiv.org/abs/1908.01679 Is there anybody out there? https://arxiv.org/abs/1706.01907