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It’s no big secret at this point that we are looking at the final years of the two venerable Voyager spacecraft. With their power supplies diminishing and their 1970s-era electronics still giving it all they got, their teams are working miracles to stretch out the time to the final goodbye for as long as possible. Despite these efforts Voyager 1 went silent for more than 24 hours on October 18 and 19, with the team still trying to figure out what happened .

The most recent change to Voyager 1 was the same ‘big bang’ switching of multiple instruments to lower-power versions, while keeping an eye on keeping the electronics and fuel at reasonable temperatures. This should give both spacecraft a few more years before power reserves fall below usable levels.…