How long does a radio signal take to reach Voyager 1 and back once it is a light-day away, NASA answers – Futura-Sciences
November 4, 2026
3 min
Launched in 1977, NASA’s Voyager 1 spacecraft continues its journey through interstellar space. On November 18, 2026, it will reach the historic distance of one light-day from Earth. © Aleksandr, Adobe Stock
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