February 7, 2019 updates Posted on February 7, 2019June 28, 2020 by Doug Loss Comment on “the ultimate limits of the relativistic rocket equation. The Planck photon rocket” https://www.sciencedirect.com/science/article/pii/S0094576518317818 Interlocking, reconfigurable, reconstitutable, reformable cell-based system with nested ring structures https://patentimages.storage.googleapis.com/64/69/b3/34ca612390a3af/US20190023419A1.pdf Interlocking, reconfigurable, reconstitutable, reformable cell-based space system https://patentimages.storage.googleapis.com/43/91/5b/494501958ec00e/US20190023424A1.pdf astroquery: An Astronomical Web-querying Package in Python https://iopscience.iop.org/article/10.3847/1538-3881/aafc33 Exploring the formation by core accretion and the luminosity evolution of directly-imaged planets: The case of HIP 65426 b https://arxiv.org/abs/1902.01869 Dark Hole Maintenance and A Posteriori Intensity Estimation in the Presence of Speckle Drift in a High-Contrast Space Coronagraph https://arxiv.org/abs/1902.01880 So close, so different: characterization of the K2-36 planetary system with HARPS-N https://arxiv.org/abs/1902.01881 The misaligned orbit of the Earth-sized planet Kepler-408b https://arxiv.org/abs/1902.02057