Voyager 1’s Mission to the Outer Planet Begins

#NASA #ImageOfTheDay The Voyager mission was designed to take advantage of a rare geometric arrangement of the outer planets in the late 1970s and the 1980s which allowed for a four-planet tour for a minimum of propellant and trip time.

http://www.nasa.gov/image-feature/voyager-1-s-mission-to-the-outer-planet-begins