'The Sound of Earth', 1977.
© National Aeronautics & Space Administration / Science & Society
Flying board Voyagers 1 and 2 are identical 'golden' records, carrying the story of Earth far into deep space. The 12 inch gold-plated copper discs contain greetings in 60 languages, samples of music from different cultures and eras, and natural and man-made sounds from Earth. They also contain electronic information that an advanced technological civilization could convert into diagrams and photographs. The cover of each gold plated aluminum jacket, designed to protect the record from micrometeorite bombardment, also serves a double purpose in providing the finder a key to playing the record. Currently, both Voyager probes are sailing adrift in the black sea of interplanetary space, having left our solar system years ago.