An artist concept depicting one of NASA's twin Voyager spacecraft. Humanity's farthest and longest-lived spacecraft are celebrating 40 years in August and September 2017. | NASA/JPL-Caltech

NASA Fires Up Voyager 1 Thrusters After 37 Years

Reigniting the long-dormant thrusters could extend Voyager 1’s mission in interstellar space by three years.