The National Aeronautics and Space Administration (Nasa) launched a robotic mission yesterday to try to prevent one of its ageing telescopes from burning up in the atmosphere, a complicated operation expected to last several months. The unprecedented $30mn effort involves sending a robot to rescue the Swift space telescope that’s currently falling towards Earth. If successful, the mission could pave the way for giving other satellites a second life. Initially scheduled for Tuesday, the robot’s launch was postponed due to weather and then technical issues. It finally took place yesterday at 0836 GMT from an atoll in the Pacific Ocean. The Swift telescope cost $250mn and is used to study gamma-ray bursts, the most powerful explosions in the universe. The closely watched mission, organised on a short-notice production schedule of just nine months, would mark a key test of an orbital-grappling technology with major implications for both the commercial satellite industry and the US-China space race. Last year China demonstrated two satellites orbiting in close proximity, following a 2022 test in which one Chinese satellite grappled onto and yanked another into a different orbit – alarming US officials who said China could one day employ such tactics on American spacecraft.