April 20, 2023 updates Posted on April 20, 2023April 21, 2023 by Doug Loss Revisiting the trajectory of the interstellar object’Oumuamua: preference for a radially directed non-gravitational acceleration? https://arxiv.org/abs/2304.06964 Existence proof of librational invariant tori in an averaged model of HD60532 planetary system https://link.springer.com/article/10.1007/s10569-023-10132-9 X-Ray-luminous Supernovae: Threats to Terrestrial Biospheres https://iopscience.iop.org/article/10.3847/1538-4357/acc728 Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095 https://arxiv.org/abs/2304.09220 Two Warm Super-Earths Transiting the Nearby M Dwarf TOI-2095 https://arxiv.org/abs/2304.09189 Constellations of co-orbital planets: horseshoe dynamics, long-term stability, transit timing variations, and potential as SETI beacons https://arxiv.org/abs/2304.09209