Defining the Mission

Voyager 1 & 2 are two Space Probes. They are part of the Voyager Interstellar Mission VIM leading by The National Aeronautics and Space Administration NASA. They were launched on August 20th & September 5th, 1977 (39 years journey) after been built at the Jet Propulsion Laboratory in California. These probes are managed & tracked until nowadays by NASA, and they send information by a communication system called Deep Space Network DSA.

References

http://voyager.jpl.nasa.gov/imagesvideo/imagesofvoyager.html

http://www.universetoday.com/91044/venerable-voyager-2-spacecraft-gets-a-tune-up-14-billion-kilometers-from-earth/