The Gravitational Threshold of Spacefaring Civilizations
http://geopolicraticus.tumblr.com/post/172681556712/the-gravitational-threshold-of-spacefaring
Space Exploration: It’s Impact on Society–A Critical Review
http://www.ijater.com/files/NCRTSTM_01_18.pdf
The Traveling-Wave Tube in the History of Telecommunication
https://arxiv.org/abs/1803.11497
Spacedrives and Conservation Laws
https://arc.aiaa.org/doi/full/10.2514/1.A34116
Escape and fractionation of volatiles and noble gases from Mars-sized planetary embryos and growing protoplanets
https://www.sciencedirect.com/science/article/pii/S0019103517301677
The First Naked-Eye Superflare Detected from Proxima Centauri
https://arxiv.org/abs/1804.02001
A HARDCORE model for constraining an exoplanet’s core size
https://arxiv.org/abs/1804.02019
Giant planets: good neighbors for habitable worlds?
https://arxiv.org/abs/1804.02183
K-Stacker: Keplerian image recombination for the direct detection of exoplanets
https://arxiv.org/abs/1804.02192
Using asteroseismology to characterise exoplanet host stars
https://arxiv.org/abs/1804.02214
Low mass planet migration in magnetically torqued dead zones – II. Flow-locked and runaway migration, and a torque prescription
https://arxiv.org/abs/1804.02290
Formation of the terrestrial planets in the solar system around 1 au via radial concentration of planetesimals
https://arxiv.org/abs/1804.02361