Turn it up! 🎶 Through sonification, we can “listen” to the data in this image of the Bullet Cluster, which combines Hubble observations with those from the Chandra X-ray Observatory and ground-based telescopes. In converting this image into sound, each layer of data was limited to a specific frequency range. Data representing dark matter, the mysterious unseen substance that makes up the vast majority of matter in the universe (shown in blue), were assigned the lowest frequencies, while X-rays