출처 : https://twitter.com/NASAExoplanets/status/1561442514078314496?t=dd8QuewZkKlWRjlwWaxuuQ&s=19
The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel. A galaxy cluster has so much gas that we've picked up actual sound. Here it's amplified, and mixed with other data, to hear a black hole! pic.twitter.com/RobcZs7F9e
— NASA Exoplanets (@NASAExoplanets) August 21, 2022
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