September 14, 2023 updates Posted on September 14, 2023September 14, 2023 by Doug Loss CDSLU: Communicating Discoveries in the Search for Life in the Universe https://apply.knowinnovation.com/cdslu/ Revisiting planetary systems in the Okayama Planet Search Program: A new long-period planet, RV astrometry joint analysis, and a multiplicity-metallicity trend around evolved stars https://academic.oup.com/pasj/advance-article-abstract/doi/10.1093/pasj/psad056/7272944 An Assay on The Hobbesian Trap and Axioms of First Contact https://www.sciencedirect.com/science/article/pii/S0265964623000486 A sub-Saturn mass-radius desert for planets with equilibrium temperature <600 K https://www.sciencedirect.com/science/article/abs/pii/S0019103523003767 Atmospheric retrievals with petitRADTRANS https://arxiv.org/abs/2309.06755 Atmospheric Reconnaissance of TRAPPIST-1 b with JWST/NIRISS: Evidence for Strong Stellar Contamination in the Transmission Spectra https://arxiv.org/abs/2309.07047 Making Habitable Worlds: Planets Versus Megastructures https://arxiv.org/abs/2309.06562 Application of the Thermodynamics of Radiation to Dyson Spheres as Work Extractors and Computational Engines, and their Observational Consequences https://arxiv.org/abs/2309.06564 Percolation of ‘Civilisation’ in a Homogeneous Isotropic Universe https://arxiv.org/abs/2309.06575