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12 audio tracks we've sent into deep space

If there are aliens out there, these are the earthly audio recordings we’re hoping they will hear.

Greetings from the Secretary-General of the UN Kurt Waldheim
Greetings from the Secretary-General of the UN by Kurt Waldheim
Getty Images
Our first track reveals the harmonies of human speech, a greeting from the then Secretary-General of the United Nations, Kurt Waldheim. Waldheim expresses humanity’s desire for peaceful contact with other beings.


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