December 27, 2022 updates Posted on December 27, 2022 by Doug Loss Silicon Nitride Metagratings for Self-Stabilizing Lightsails https://meetings.aps.org/Meeting/MAR23/Session/K40.5 Human Health during Space Travel: State-of-the-Art Review https://www.mdpi.com/2073-4409/12/1/40 Research on the Gradient-Field Superconducting Magnet for Magnetoplasmadynamic Thruster Performance Improvement https://ieeexplore.ieee.org/abstract/document/9996371 Creating the Radius Gap without Mass Loss https://iopscience.iop.org/article/10.3847/1538-4357/ac9c66 A possible converter to denoise the images of exoplanet candidates through machine learning techniques https://www.sciencedirect.com/science/article/abs/pii/S1384107622001798 Dust from collisions: A way to probe the composition of exo-planets? https://arxiv.org/abs/2212.13174