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Voyager 1 is about to reach one light-day from Earth, a milestone Smithsonian Magazine reported on November 10, 2026. The probe and its twin, Voyager 2, have travelled for almost 50 years and are extending humanity's reach into interstellar space. Voyager 1 remains the farthest human-made object from Earth. The article does not give the exact date the milestone will be crossed.