Voyager 1 Returning Science Data from All Four Instruments After Months of Radio Silence

Two months after NASA reestablished diagnostic communications with Voyager 1, the spacecraft has begun transmitting scientific observational data once more. This data, collected from the last remaining operational instruments aboard Voyager 1, provides crucial information on plasma and magnetism in interstellar space.

Reconnecting with Voyager 1

In March 2024, mission control at NASA’s Jet Propulsion Laboratory (JPL) at the California Institute of Technology diagnosed and resolved an issue that had disrupted two-way communication with the probe. The solution involved dividing corrupted computer code into short sections, storing them in different places on the probe’s flight data subsystem, and ensuring the onboard computer could locate them again. Following this fix, commands were successfully issued to restart the transmission of scientific data on May 19th.

Resuming Scientific Operations

Initially, two of the four science instruments on Voyager 1 returned to their normal operating modes. After additional efforts, the remaining two instruments also began sending usable data. These instruments study plasma waves, magnetic fields, and particles, making Voyager 1 and its twin, Voyager 2, the only spacecraft to directly sample interstellar space. This region lies outside the heliosphere, the protective bubble of magnetic fields and solar wind created by the Sun.

The Ongoing Journey of Voyager 1

Launched 46 years and 7 months ago, Voyager 1 has been traveling through space for nearly five decades. It left the solar system 11 years and 8 months ago and is currently 15 billion miles (24 billion kilometers) from Earth. Despite its vast distance, the probe continues to amaze scientists with its resilience and ability to send back valuable scientific data.

Suzanne Dodd, Voyager’s project manager, expressed her amazement at the probe’s longevity: “We never know for sure what’s going to happen with the Voyagers, but it constantly amazes me when they just keep going.”

Future Prospects for Voyager 1

Voyager 1’s journey is not without challenges. The probe’s instruments are gradually consuming its remaining battery power. It is anticipated that within the next year or so, some of the instruments will need to be powered down to conserve energy. By 2036, Voyager 1 is expected to be beyond the reach of the Deep Space Network and all communications, carrying the Golden Record into the unknown.

Sophia H.