A Japanese Space Station concept from 2008, with modules derived from Kibo and the HTV cargo spacecraft. https://t.co/gSY61OByNh video by @AIKuni_YT https://t.co/IR1nWwxZXk https://t.co/Fe1eHvnhsi

A demonstrator known as LIFLEX (Lifting Body Flight Experiment) was tested in 2007, after the cancellation of the HOPE mini-shuttle program in 2003. https://t.co/jKaHXy7Qlu https://t.co/5s14zFwnrq

@TAbusnardo @Truthful_ast @ansur_nied I happened to find what you were looking for: https://t.co/yBENbU6xAH https://t.co/CYKIhLFGyi

JAXA's crewed HTV was supposed to launch in 2020. Document from 2010: https://t.co/3TMFYITlNJ https://t.co/vbqrwZxdWD

@AIKuni_YT @Truthful_ast The document is called "Post H-II Launch-Vehicle 'Rocket Plane'" and it's from 1989. https://t.co/CTbEZkDwEf

@Truthful_ast I've never seen this concept before. I've only seen these reusable boosters as rendered by @ansur_nied, as well as this NASDA diagram from 1996: https://t.co/42OkOP7VIj https://t.co/6RyMif313Z

@SunsetLimited84 Source: https://t.co/42OkOOPMub

I found a 2017 document that proposes a "Mars Aerocapture Orbiter". This figure seems to suggest "plans" for an HTV for Mars that would aerocapture into orbit. I wonder how hard this is never going to happen. https://t.co/yH01tYJVTj https://t.co/2wZBm335Ta

Here's a 1985 concept of what the Japanese Experiment Module aboard Freedom could have been https://t.co/qMZiSgXEKL https://t.co/se481CI2EH

@Matveich2984 @Amateur_Astro1 @rogerwang86

@Matveich2984 @Amateur_Astro1 @rogerwang86