https://www.theverge.com/2018/10/30/18037984/golden-record-nasa-image-decode-voyager-1-2

More than 11 billion miles away from Earth, two small discs are rocketing through space at speeds in excess of 37,200 miles per hour. Their journey started in 1977, when NASA sent the two Golden Records into space, bolted to the Voyager 1 and 2 spacecraft. The records contain a treasure trove of information about our home planet, including sounds, songs, and images from Earth.