Overview
- Voyager 1 is expected to cross the one light‑day distance from Earth on November 18, 2026, a point where radio messages take about 24 hours to reach the spacecraft and 24 hours to return.
- In September the mission team executed a power‑saving operation nicknamed the “Big Bang” that replaced three heaters with lower‑power units to delay further instrument shutdowns.
- The Deep Space Network failed to detect Voyager 1 on October 18 and 19 and contact resumed automatically on October 20, with engineers continuing to investigate the outage.
- Early analysis shows one group of onboard thrusters went offline during the outage and built‑in fault protection automatically switched to backup thrusters, pausing some normal operations.
- Voyager 1 runs on radioisotope thermoelectric generators that lose about four watts of power per year so engineers must balance limited energy, aging hardware, and automated safeguards to keep returning unique interstellar data.