After 34 years, Voyager 2 will switch to unused backup thrusters

NASA has had many successful missions in space, but the Voyager program has to come near the top of the pile. Two identical unmanned probes called Voyager 1 and Voyager 2 were launched in 1977 to study Jupiter and Saturn. But both have continued their flights through space, still functioning after 34 years and regularly [...]

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