September 23, 2021 Updates Posted on September 23, 2021 by Doug Loss Solar Neighborhood Exoplanet Host Stars within a Galactic Context https://iopscience.iop.org/article/10.3847/2515-5172/ac283d On the Demographics of Exoplanet Host Stars https://iopscience.iop.org/article/10.3847/2515-5172/ac2893 Polarization Measurements of Selected Young Stars with Circumstellar Dusty Disks https://iopscience.iop.org/article/10.3847/2515-5172/ac2822 Masses for free-floating planets and dwarf planets https://iopscience.iop.org/article/10.1088/1674-4527/21/6/133 Two Bright M Dwarfs Hosting Ultra-Short-Period Super-Earths with Earth-like Compositions https://iopscience.iop.org/article/10.3847/1538-3881/ac0fdc Radial-velocity Precision of ESPRESSO Through the Analysis of the Solar Twin HIP 11915 https://iopscience.iop.org/article/10.3847/1538-3881/ac1bb5 Intelligent responses to our technological signals will not arrive in fewer than three millennia https://www.sciencedirect.com/science/article/abs/pii/S0094576521004744