Each probe is powered by three radioisotope thermoelectric generators (RTGs) fueled by decaying plutonium-238. The RTG arrays offered Voyager 1 and 2 about 470 watts at 30 volts when they first ...

NEW YORK (AP) — NASA is switching off two science instruments on its long-running twin Voyager spacecraft to save power. The space agency said Wednesday an instrument on Voyager 2 that measures ...

(CNN) — NASA’s twin Voyager probes, which launched 47 years ago, are shutting off some science instruments in an effort to conserve power and keep their storied missions going. Voyager 1 and ...

NASA engineers are turning off two instruments to ensure that the twin spacecraft, Voyager 1 and Voyager 2, can continue exploring space beyond the limits of the solar system. To save energy for ...