March 20, 2018 updates Posted on March 20, 2018June 28, 2020 by Doug Loss Inward migration of the TRAPPIST-1 planets as inferred from their water-rich compositions https://www.nature.com/articles/s41550-018-0411-6 Relativistic Spacecraft Propelled by Directed Energy http://iopscience.iop.org/article/10.3847/1538-3881/aaafd2 A Population Study of Gaseous Exoplanets https://arxiv.org/abs/1704.05413 Robo-AO Kepler Survey. IV. The Effect of Nearby Stars on 3857 Planetary Candidate Systems http://iopscience.iop.org/article/10.3847/1538-3881/aab042 Line shape parameters for the H2O–H2 collision system for application to exoplanet and planetary atmospheres https://www.sciencedirect.com/science/article/pii/S0019103517305596 Characterizing Earth Analogs in Reflected Light: Atmospheric Retrieval Studies for Future Space Telescopes https://arxiv.org/abs/1803.06403 Magnetic Fields of Extrasolar Planets: Planetary Interiors and Habitability https://arxiv.org/abs/1803.06487 Dynamical Evolution of Planetary Systems https://arxiv.org/abs/1803.06704 A Decade of MWC 758 Disk Images: Where Are the Spiral-Arm-Driving Planets? https://arxiv.org/abs/1803.06776 Prehistory of Transit Searches https://arxiv.org/abs/1803.06896 The Feasibility and Benefits of In Situ Exploration of `Oumuamua-like objects https://arxiv.org/abs/1803.07022 Habitability from Tidally-Induced Tectonics https://arxiv.org/abs/1803.07040