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NASA Revives Voyager 1’s Dead Thrusters After 21 Years — Here’s How
NASA has successfully reactivated Voyager 1’s backup thrusters, unused since 2004, in what NASA is calling a "miracle save" for the 48 years old probe now in deep space.
So engineers went back to failed internal heaters and, just in case, attempted to revive a power switch that may been at fault 21 years ago. Despite the radio signal taking over 23 hours to travel from Earth to the spacecraft, the fix — a sequence of commands — worked from 16 billion miles away. Voyager 1 is now in interstellar space in the constellation Ophiuchus, in the southern sky beneath the Summer Triangle stars, as seen from the Northern Hemisphere.
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