Golden Record 

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The "Voyager Golden Record" refers to two identical phonograph records, one carried on each of the Voyager 1 and Voyager 2 spacecraft, containing sounds and images selected to portray the diversity of life and culture on Earth, intended as a message to any intelligent extraterrestrial life form who may find them. The record's protective cover includes with instructions for playing its contents, finding Earth in the cosmos, and dating how long it has been in space.

Golden Record 
Source: www.google.com