👉In November 2026, NASA’s Voyager 1 spacecraft is expected to reach a remarkable milestone: it will be about one light-day from Earth—nearly 16 billion miles away. At that distance, even signals traveling at the speed of light will need 24 hours to reach the spacecraft and another 24 hours to return. In practical terms, every command sent and response received will take about two full days, showing just how far Voyager 1 has traveled. Launched in 1977, Voyager 1 first visited Jupiter and Saturn