August 9, 2021 updates Posted on August 9, 2021 by Doug Loss The Benefits of Spin Polarization for Fusion Propulsion https://arxiv.org/abs/2108.01211 Phosphine and nitrous oxide as false-positive biosignature gases in planetary spectra https://dspace.cuni.cz/handle/20.500.11956/128311 How the Geomagnetic Field Influences Life on Earth – An Integrated Approach to Geomagnetobiology https://link.springer.com/article/10.1007/s11084-021-09612-5 The GLINT South testbed for nulling interferometry with photonics: Design and on-sky results at the Anglo-Australian Telescope https://www.cambridge.org/core/journals/publications-of-the-astronomical-society-of-australia/article/abs/glint-south-testbed-for-nulling-interferometry-with-photonics-design-and-onsky-results-at-the-angloaustralian-telescope/1B19245ACD492BD05C2AFB15F2ADE689 Beating 1 Sievert: Optimal Radiation Shielding of Astronauts on a Mission to Mars https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021SW002749 Angular momentum distributions for observed and modeled exoplanetary systems https://arxiv.org/abs/2108.02890 Dynamical stability of giant planets: the critical adiabatic index in the presence of a solid core https://arxiv.org/abs/2108.03160