As Voyager 1 Nears a Historic Milestone, NASA Uses Clever Engineering To Keep the Probe Going

In September 1977, Voyager 1 launched into space carrying recordings of Earth's music, languages, and sounds. Astronomer Carl Sagan suggested the probe take a photo of Earth as it approached the solar system's fringes, resulting in the famous Pale Blue Dot image. Voyager 1, now the farthest-traveled and longest-running mission, is about to reach a significant milestone by traveling one light-day from Earth.

To keep the probe operational, NASA has had to shut down certain instruments and implement an engineering solution known as the "Big Bang," swapping power-consuming devices for low-power alternatives. After successfully implementing the upgrade, Voyager 1 unexpectedly lost communication on October 18-19, 2026, a rare occurrence for the spacecraft.

The team is still investigating the cause of the radio silence but is relieved to have reestablished contact. Voyager 1 continues to send valuable data back to Earth, despite being too far away to see our home planet again.