NASA's Voyager 2 spacecraft to continue full science operations until 2026 with new power strategy.

NASA's Voyager 1 and 2 space probes have been operating for over 45 years, thanks to the radioisotope thermoelectric generators (RTGs) that provided 470 W at launch. Recently, NASA announced that Voyager 2 has a reserve power source that will postpone the shutdown of more science instruments for a few more years. The Voyager's Multi-Hundred Watt (MHW) RTGs are the predecessor to the RTGs that are still powering the New Horizons probe after 17 years and the Mars Science Laboratory (Curiosity) for over 10 years, showing the value of RTGs in long-term exploration missions.