Voyager 1 loses contact with NASA, turns on retro transmitter not used since 1981
Space.com   6 days ago
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Voyager 1 loses contact with NASA, turns on retro transmitter not used since 1981  Livescience.comVoyager 1 spacecraft phones home with transmitter that hasn't been used since 1981  Space.comVoyager 1 is alive: NASA spacecraft reawakens 15 billion...