Today in astrobiology I'm talking about ways that we have purposely tried to talk to aliens. Some great resources I'm going to share with my class:
All the greetings on Voyager's Golden Record: https://soundcloud.com/nasa/sets/golden-record-greetings-to-the
All the sounds: https://soundcloud.com/nasa/sets/golden-record-sounds-of
List of music: https://voyager.jpl.nasa.gov/golden-record/whats-on-the-record/music/
The Arecibo message: https://www.seti.org/seti-institute/project/details/arecibo-message