September 23, 2019 updates Posted on September 23, 2019June 28, 2020 by Doug Loss Principles of Space Anthropology https://link.springer.com/book/10.1007%2F978-3-030-25021-8 Prevalence of Fibonacci numbers in orbital period ratios in solar planetary and satellite systems and in exoplanetary systems https://link.springer.com/article/10.1007/s10509-019-3649-2 Transition from eyeball to snowball driven by sea-ice drift on tidally locked terrestrial planets https://www.nature.com/articles/s41550-019-0883-z Combining high-contrast imaging and radial velocities to constrain the planetary architectures of nearby stars https://www.aanda.org/articles/aa/abs/2019/10/aa35733-19/aa35733-19.html Tidal response of rocky and ice-rich exoplanets https://www.aanda.org/articles/aa/full_html/2019/10/aa35297-19/aa35297-19.html Water vapor detection in the transmission spectra of HD 209458 b with the CARMENES NIR channel https://www.aanda.org/articles/aa/full_html/2019/10/aa36084-19/aa36084-19.html Searching for a cometary belt around Trappist-1 with ALMA https://arxiv.org/abs/1909.09158 An Empirical Mass-Radius Relation for Cool Giant Planets https://arxiv.org/abs/1909.09207 Doppler tomography as a tool for detecting exoplanet atmospheres https://arxiv.org/abs/1909.09219 Resonant Laplace-Lagrange theory for extrasolar systems in mean-motion resonance https://arxiv.org/abs/1909.09462