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NASA's two Voyager spacecraft have been through a lot: nearly 50 years of space travel and an astonishing 15 billion miles.But instead of allowing the two spacecraft to rest in peace — a well-deserved end to an almost half-a-century-long journey — NASA is still trying every trick in the book to keep the aging probes alive.
The agency is hoping the patch will address a buildup of fuel residue inside some of the tubes of the spacecraft's thrusters. These thrusters play an incredibly important role, keeping the spacecraft's antenna pointed at Earth and allowing teams back on the ground to communicate with it.
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