The Voyager Interstellar Recording is attached to both the Voyager 1 and 2 spacecrafts, which were launched on August 20 and September 5, 1977. The Recording is a gold-plated phonograph record in an aluminum case (see picture at right). Engraved on the case are instructions on how to play the record.
Included on the record are greetings in over 50 languages, various animal noises including the songs of the humpback whales, music from different cultures, as well as an audio representation of the electrical activity of one person's body over the course of an hour.
The recording should last for one billion years.
A cartridge and stylus are included on board.