The speaker for the May meeting will be Mike Mackowski. He will give a talk on “Whatever Happened to Reusable Single Stage to Orbit (SSTO) Rockets?”. With all the progress that SpaceX and Blue Origin are making on reusable boosters, this is not a new concept. There have been studies galore of fully reusable SSTO rockets but none have been built. We’ll explore why that is and if reusable SSTO is even possible.