NASA Tests 'Cryocoupler' for In-Orbit Refueling of Future Deep Space Missions

NASA, in collaboration with L3Harris, is testing a 'cryocoupler' for in-orbit refueling of spacecraft, enabling future deep space missions to refuel before departure. The cryocoupler, likened to a gas pump nozzle, facilitates the transfer of extremely cold fluids like liquid hydrogen and oxygen without leaking, even at hundreds of degrees below Fahrenheit. Fully automated and designed to withstand space conditions, these couplers can attach and detach multiple times without requiring spacewalks. Recent tests with liquid nitrogen at -321°F evaluated the device's performance under significant temperature differences and misaligned dockings. While current tests are basic, future evaluations will be tailored to specific mission requirements. [Link to test video omitted for text format].