When NASA launched both Voyager 1 and 2 into space, they carried along with them a golden record containing a soundtrack intended for first contact with alien life. On it contains music, greetings in various languages and everyday life sounds like animals and cars.
Along with a Cornell University committee, Carl Sagan was left in charge to decide what noises aliens could hear first if they ever discovered either of the Voyager space shuttles. In an effort to educate a younger audience today, NASA has made most of these sounds available to anyone via Soundcloud. Although the actual golden record contains over 90 minutes of music with classics like Blind Willie Johnson’s “Dark Was The Night” and Beethoven’s “Symphony No. 5, First Movement”, due to copyright issues they haven’t been included on the playlists below.