On this day in space! Aug. 20, 1977: NASA launched the Voyager 2 spacecraft on a mission to explore the outer planets.
On this day in space! Aug. 20, 1977: Voyager 2 launches to the outer planets
Hanneke Weitering
On this day in space! Aug. 20, 1977: NASA launched the Voyager 2 spacecraft on a mission to explore the outer planets.