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Voyager 1 reaches one light-day from Earth

expected November 2026

expected November 2026

—hype

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    Photo: National Aeronautics and Space Administration (NASA) · Public domain · via Wikimedia Commons

    About this moment

    Voyager 1 reaches one light-day from Earth is expected November 2026. The exact day has not been announced yet.

    Voyager 1, launched in 1977, is expected to pass about 173.8 astronomical units from Earth in November 2026, the distance light travels in a day. From then on a radio command takes more than 24 hours to reach the probe, and its reply takes as long to come back.

    The source has announced a date range. An exact day has not been confirmed.

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    Computed curiosities

    Last verified Sep 10, 2026

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