In 2017, the Voyager team successfully fired the spacecraft's trajectory correction maneuver (TCM) thrusters for the first time since 1980, enabling the mission to be extended by two to three years.[12] Voyager 1's extended mission is expected to continue to return scientific data until at least 2025, with a maximum lifespan of until 2030.[13] Its radioisotope thermoelectric generators (RTGs) may supply enough electric power to return engineering data until 2036.[14]