The history of Japanese reusable rocket R&D came up in my interview on @tmro last weekend. It’s a subject that’s pretty unknown (even within Japan), so it might be worth a bit more of a deep dive. Still a twitter rookie, so I’ll take the thread function for a test drive! (1/14) @tmro In 1993, the Japanese Rocket Society started a space tourism study. The goal was to investigate a range of requirements for a commercial airline-style space transportation industry. They looked at engineering, economics, safety/regulations, operations, etc. (2/14)