Regular readers of Vintage Space undoubtedly know that I love landing systems, particularly the creative ideas that were too complicated to gain traction in the 1960s. Among unrealized systems, my favourite has to be the Rogallo wing, the inflatable glider NASA tried to use as the runway landing system for Gemini. But there’s another that’s intrigued me for a while that I found while researching the Rogallo wing in NASA’s Washington archives and that’s the rotor reentry concept proposed for Apollo. It’s mysteriously absent from most program histories, but it seems to be making a comeback. NASA is once again looking at the rotor reentry as a way to land capsule-inspired spacecraft from the ISS. Read the full article over at Discovery News.