Chemist Nilab Azim, left, and Nathan Gelino, principal investigator with NASA’s Exploration Research and Technology programs, test a 3D printer on July 28, 2022, at Swamp Works at the agency’s Kennedy Space Center in Florida, as part of the Relevant Environment Additive Construction Technology (REACT) project. Among the key objectives of the project is developing an architectural and structural design for a shelter that provides protection to habitable assets on the lunar surface. Testing REACT derives from NASA’s 2020 Announcement of Collaboration Opportunity with AI SpaceFactory – an architectural and construction technology company and winner of NASA’s 3D Printed Habitat Challenge.