Actually, https://twitter.com/NASAExoplanets/status/1561442514078314496 https://twitter.com/NASAExoplanets/status/156144251407831449... : > The misconception

Actually, https://twitter.com/NASAExoplanets/status/1561442514078314496 https://twitter.com/NASAExoplanets/status/156144251407831449... : > 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! "Physicists demonstrate how sound can be transmitted through vacuum" https://www.sciencedaily.com/releases/2023/08/230809130709.htm https://www.sciencedaily.com/releases/2023/08/230809130709.h... : > In a recent publication they show that in some cases a sound wave can jump or "tunnel" fully across a vacuum gap between two solids if the materials in question are piezoelectric. "Complete tunneling of acoustic waves between piezoelectric crystals" (2023) https://www.nature.com/articles/s42005-023-01293-y https://www.nature.com/articles/s42005-023-01293-y Helmholtz resonance https://en.wikipedia.org/wiki/Helmholtz_resonance https://en.wikipedia.org/wiki/Helmholtz_resonance : > Helmholtz resonance is one of the principles behind the way piezoelectric buzzers work: a piezoelectric disc acts as the excitation source, but it relies on the acoustic cavity resonance to produce an audible sound.