December 7, 2020 updates Posted on December 7, 2020 by Doug Loss Distinguishing Between Biological and Machine Civilization Techno-signatures https://www.centauri-dreams.org/2020/12/04/distinguishing-between-biological-and-machine-civilization-techno-signatures/ Space, the Final Frontier: In the Scientific Pursuit of Extraterrestrial Life Away from Earth https://www.academia.edu/42678316/Space_the_Final_Frontier_In_the_Scientific_Pursuit_of_Extraterrestrial_Life_Away_from_Earth Extremophiles as Astrobiological Models https://onlinelibrary.wiley.com/doi/book/10.1002/9781119593096 No escaping helium from 55 Cnc e https://arxiv.org/abs/2012.02198 Decaying Orbit of the Hot Jupiter WASP-12b: Confirmation with TESS Observations https://arxiv.org/abs/2012.02211 A Distinct Population of Small Planets: Sub-Earths https://arxiv.org/abs/2012.02273 A Newtonian model for the WASP-148 exoplanetary system enhanced with TESS and ground-based photometric observations https://arxiv.org/abs/2012.02602