In 1977 NASA sent two gold-plated phonograph records containing images and audio into space. These records travelled onboard Voyager probes I and II. The discs were conceived as time capsules intended to communicate the story of our world to extraterrestrials.
system for translating the longitude and latitude of a location into a melody. Music composed from this system appears on Thomson's vinyl album Platinum Metres - a reworking of NASA's golden records.