The 1960s Tech Keeping NASA’s Voyager Probes Alive for Nearly 50 Years
Solar panels are next to useless in the outer solar system, so NASA’s Voyager probes rely on nuclear batteries—technology first developed in the 1960s—to keep running billions of miles from Earth.


Solar panels are next to useless in the outer solar system, so NASA’s Voyager probes rely on nuclear batteries—technology first developed in the 1960s—to keep running billions of miles from Earth.