NASA is taking steps to extend the operational life of the Voyager 1 spacecraft, the most distant human-made object, by powering down its remaining science instruments. The probe, launched in 1977, relies on a radioisotope thermoelectric generator (RTG) whose power output decreases predictably by about 4 watts per year.
Mission managers have been systematically turning off heater circuits and other non-essential systems to reserve power for the probe's core functions and a few key instruments. The goal is to keep Voyager 1 communicating with Earth for as long as possible, potentially into the 2030s, even as its power supply continues to diminish.
This process is a planned part of the mission's end-of-life management, not a response to a sudden failure. Each instrument shutdown is a calculated decision to prioritize the spacecraft's longevity and its ability to return unique data from interstellar space.
