November 11, 2020 updates Posted on November 11, 2020 by Doug Loss Nondetection of Helium in the Upper Atmospheres of Three Sub-Neptune Exoplanets https://iopscience.iop.org/article/10.3847/1538-3881/abbee6 The Demographics of Exoplanets https://arxiv.org/abs/2011.04703 A Search for Technosignatures Around 31 Sun-like Stars with the Green Bank Telescope at 1.15-1.73 GHz https://arxiv.org/abs/2011.05265