April 3, 2020 updates Posted on April 3, 2020June 28, 2020 by Doug Loss Interstellar Comet Borisov is no longer in one piece https://www.space.com/interstellar-comet-borisov-two-pieces.html Is there Na I in the atmosphere of HD 209458b? – Effect of the centre-to-limb variation and Rossiter-McLaughlin effect in transmission spectroscopy studies https://www.aanda.org/articles/aa/full_html/2020/03/aa37221-19/aa37221-19.html Earth’s Polar Night Boundary Layer as an Analog for Dark Side Inversions on Synchronously Rotating Terrestrial Exoplanets https://iopscience.iop.org/article/10.3847/2041-8213/ab7fb3 WASP-4 is Accelerating Toward the Earth https://arxiv.org/abs/2004.00637 Tidal friction in satellites and planets. The new version of the creep tide theory https://arxiv.org/abs/2004.01109