May 1, 2018 updates Posted on May 1, 2018June 28, 2020 by Doug Loss Space Settlement: What’s the Rush? https://www.academia.edu/attachments/56028915/download_file?s=work_strip How Will An Organism Get to Space? https://pdfs.semanticscholar.org/presentation/f7b5/781cffb29cedf4291321e22fe6f4b76c69fa.pdf Absolute densities in exoplanetary systems. Photodynamical modelling of Kepler-138. https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/sty1050/4987222 Mars’ growth stunted by an early giant planet instability https://www.sciencedirect.com/science/article/pii/S0019103517308424 TRAPPIST-1e Has a Large Iron Core https://arxiv.org/abs/1804.10618 The detectability of radio emission from exoplanets https://arxiv.org/abs/1804.11006 Evidence for unresolved exoplanet-hosting binaries in Gaia DR2 https://arxiv.org/abs/1804.11082 The XUV environments of exoplanets from Jupiter-size to super-Earth https://arxiv.org/abs/1804.11124 A Comparative Analysis of the Cobb-Douglas Habitability Score (CDHS) with the Earth Similarity Index (ESI) https://arxiv.org/abs/1804.11176