Voyager 1 will reach one light-day from Earth in 2026. Here’s what that means

By Ashley Strickland, CNN (CNN) — Voyager 1, NASA’s deep-space probe, could soon become the first spacecraft to reach a historic milestone. In November 2026, the probe will be one light-day from Earth. Launched in 1977, Voyager 1 is the farthest spacecraft from our planet, currently exploring interstellar space 15.8 billion miles away. The term