Miscellaneous
Spaceflight news— Raptor issues (spacenews.com) (twitter.com/thesheetztweetz) (spaceexplored.com)— Neutron, a 2050 rocket (youtube.com) (spacenews.com) — Electron thermal protection system is aerogel/graphite composite! (HT Andrew Z: twitter.com/Peter_J_Beck)Short & Sweet— ESA tests tanks for its reusable launch vehicle (esa.int)— Virgin Galactic and Blue Origin select future astronauts (spacenews.com)— Northrop Grumman wins SLS booster contract (spacenews.com)— Fatigue, debris, and rumors of debris (spacenews.com) (spacenews.com)Questions, comments, corrections— Pangea tests an aerospike! (HT Andrew Z: youtube.com)This week in SF history— 10 Dec, 1974. Launch of Helios A, a West German/NASA collaboration (en.wikipedia.org) (bernd-leitenberger.de)— Next week (12/14-12/20) in 1976: Two tickets, I mean, just one ticket to space, please!