September 29, 2021 Updates Posted on September 29, 2021 by Doug Loss Phosphine Generation Pathways on Rocky Planets https://www.liebertpub.com/doi/abs/10.1089/ast.2021.0034 Hot Jupiter formation in dense clusters: secular chaos in multi-planetary systems https://arxiv.org/abs/2109.13248 SCExAO, a testbed for developing high-contrast imaging technologies for ELTs https://arxiv.org/abs/2109.13353 Size evolution of close-in super-Earths through giant impacts and photoevaporation https://arxiv.org/abs/2109.13487 2021 Census of Interstellar, Circumstellar, Extragalactic, Protoplanetary Disk, and Exoplanetary Molecules https://arxiv.org/abs/2109.13848