June 17, 2020 updates Posted on June 17, 2020June 28, 2020 by Doug Loss Principles of Pulsar Space Navigation https://link.springer.com/article/10.1134/S1063772920070057 Searching for thermal inversion agents in the transmission spectrum of KELT-20b/MASCARA-2b: detection of neutral iron and ionised calcium H&K lines https://academic.oup.com/mnras/article-abstract/496/1/504/5856007 Simultaneous Optical Transmission Spectroscopy of a Terrestrial, Habitable-zone Exoplanet with Two Ground-based Multiobject Spectrographs https://iopscience.iop.org/article/10.3847/1538-3881/ab935f Directly imaged exoplanets in reflected starlight. The importance of knowing the planet radius https://arxiv.org/abs/2006.08784 Formation of aqua planets with water of nebular origin: Effects of water enrichment on the structure and mass of captured atmospheres of terrestrial planets https://arxiv.org/abs/2006.09068