NASA Just Fired Voyager 1's Thrusters For the First Time in 37 Years

December 04, 2017

Before Cassini or Galileo, there were the Voyager probes. Launched in August and September of 1977, both Voyager 1 and Voyager 2 continue to communicate with Earth via the Deep Space Network. Voyager 1 is farther from Earth than Voyager 2, due to differences in their missions and trajectories, at an estimated 141 AU from Earth (1 AU is the distance between Earth and the sun). On Friday, NASA engineers were able to successfully fire Voyager 1’s backup thrusters -- for the first time in 37 years.