November 15, 2019 updates Posted on November 15, 2019June 28, 2020 by Doug Loss Zodiacal Exoplanets in Time (ZEIT) IX: a flat transmission spectrum and a highly eccentric orbit for the young Neptune K2-25b as revealed by Spitzer https://arxiv.org/abs/1911.05744 Investigating the Planet-Metallicity Correlation for Hot Jupiters https://arxiv.org/abs/1911.05830 Pre-discovery Activity of New Interstellar Comet 2I/Borisov Beyond 5 AU https://arxiv.org/abs/1911.05902 Sublimation of Water Ice from a Population of Large, Long-Lasting Grains Near the Nucleus of 2I/Borisov? https://arxiv.org/abs/1911.06271 Information in the Reflected Light Spectra of Widely Separated Giant Exoplanets https://arxiv.org/abs/1911.06274 Electric sails are potentially more effective than light sails near most stars https://arxiv.org/abs/1911.02765