After a long 35-year journey, NASA’s Voyager I left our solar system on August 25, 2012, clocking a total travel distance of over 12 billion miles. Humans, by proxy, have officially begun interstellar travel, and between October 2012-May 2013 it recorded two instances of interstellar plasma. Continue reading to hear what deep space sounds like.

Voyager One will continue to transmit until the year 2020 and both One and Two are expected to deplete their nuclear fuel and power down around 2025.

You can hear the “space shrieks” in the video below. What do you think? Creepy or exciting?

[Sources 1 | 2]