NASA tests an in-orbit refueling device for deep space missions

NASA is testing a device called a "cryocoupler," built by L3Harris, that could make refueling spacecraft in orbit possible. This technology is designed to transfer super-cold liquid propellants between vehicles in space, which is a major challenge due to extreme temperatures. Success could open the door to longer, more ambitious deep space missions by allowing spacecraft to be refueled rather than replaced.