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Voyager 1 approaching one light-day distance
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2026-10-23 23:58 UTC → 2026-10-26 09:12 UTC ·
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NASA’s Voyager 1 spacecraft is projected to reach a milestone distance of one light-day from Earth on November 18, 2026. This distance, approximately 25.9 billion kilometers, will result in a 48-hour round-trip communication window window, as any command sent to the spacecraft will take one full day to arrive and another day for a response to return. Due to this unprecedented distance, which is roughly 173 times the average distance between the Earth and the probe. While Sun, NASA plans to transition from measuring the spacecraft is probe in kilometers to using light-travel time as a more intuitive scale. While approaching this distance milestone from Earth, it is currently the probe remains closer to the Sun than to our planet due to Earth’s orbital position. It position; it is estimated that Voyager 1 will to take an additional two months to reach a distance of one light-day from the Sun. Launched in 1977, the probe entered interstellar space in 2012. It continues to transmit scientific data regarding the interstellar medium, magnetic fields, and plasma despite its age plasma. Previous observations include volcanic activity on Io, the subsurface ocean on Europa, and technical challenges. the characteristics of Saturn's moons. To commemorate the achievement, an exhibition in Madrid featuring a full-scale replica of Voyager 1—constructed over five years using recycled materials—is scheduled to run from November 3 to November 18, concluding with the ‘A un día luz’ science and music festival.
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- 2026-10-26 09:12 UTC Voyager 1 approaching one light-day distance
- 2026-10-23 23:58 UTC Voyager 1 approaching one light-day distance
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