Rocket Madsen Space Lab (often called RML Spacelab) is a laboratory established by Peter Madsen on 16 July 2014 in Copenhagen.
Rocket Madsen Space Lab is located in the Horizontal Assembly Building (HAB) of the old B&W shipyard at Refshaleøen in Copenhagen. In this building Peter Madsen now researches, develops, and builds rockets based on H2O2/polyurethane hybrid engines.