SCIENCE · AI-ASSISTED SUMMARY
Voyager 1 Approaches One-Light-Day Mark
WHY IT MATTERS
This milestone marks a significant achievement in the Voyager mission, which has provided valuable science from the far reaches of our solar system. The spacecraft's continued journey into interstellar space will continue to expand our understanding of the universe and its mysteries.
What happened
NASA's Voyager 1 spacecraft, launched in 1977, is nearing a significant milestone in its journey through the solar system. On November 18, 2026, it will cross the one-light-day mark, a distance of 16.1 billion miles from the Sun. The spacecraft has been traveling for nearly 49 years, using gravity assists from the outer planets to continue its journey.
Voyager 1 carries the Golden Record, a 12-inch phonograph record with greetings in 55 languages, musical tracks, and images of Earth. The record is protected by an outer cover featuring etchings that show the Sun's location relative to 14 pulsars.
Voyager 1 is currently being tracked by NASA's Deep Space Network, with the Canberra antenna monitoring its position at 25.80 billion km. The spacecraft has crossed the heliopause, the boundary between the solar wind and the interstellar medium, and is now in the interstellar medium.
LINKED SOURCES
November’s Night Sky Notes: Light-Day Away
NASA · NASA media usage guidelines; third-party material excluded
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