NASA is keeping Voyager 1 alive by switching off instruments and heaters one by one—but it cannot let the spacecraft become so cold that its fuel lines freeze. If those lines fail, Voyager could lose the thrusters that keep its antenna aimed at Earth, per
With its power fading about four watts a year, Voyager 1 is being kept alive one switched-off instrument at a time, against a hard limit: let it get too cold and the fuel lines that feed its…
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