Voyager 1 is an ancient space probe that was used by NASA to study Jupiter, Mars and the outer planets of Sol. It launched on September 5, 1977. In 3301 it was rediscovered 2.1 million LS out from Sol. It's identical to Voyager 2.
Both probes include the Voyager Golden Record which is a recording of sounds and images of life on Earth. It has sounds of nearly all languages on Earth and was designed by a team lead by Carl Sagan to communicate with extraterrestrial life.