April 20, 2021 updates Posted on April 20, 2021 by Doug Loss Introducing physical warp drives https://iopscience.iop.org/article/10.1088/1361-6382/abdf6e Searching for Extragalactic Exoplanetary Systems: the Curious Case of BD+20 2457 https://arxiv.org/abs/2104.08306 Evidence of energy-, recombination-, and photon-limited escape regimes in giant planet H/He atmospheres https://arxiv.org/abs/2104.08832 Photon-Inter-Correlation Optical Communication https://arxiv.org/abs/2104.08913 Phase curve pollution of exoplanet transmission spectra https://arxiv.org/abs/2104.08979 The traditional approximation of rotation for rapidly rotating stars and planets. I. The impact of strong deformation https://arxiv.org/abs/2104.09302