https://t.co/BOHHUustKB When @rameshsrivats said, "Why are people not countering Dhruv Rathee with facts," I thought I would write this post. Please share widely, and the post tells you why you should.
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!