2021Whirlpool Galaxy
Chandra · Hubble · Spitzer · GALEX
Galaxies · 2020
Bullet Cluster
Where dark matter gives itself away
- Distance
- 3.8 billion light-years
- Telescopes
- Chandra, Hubble
Two galaxy clusters have smashed through each other. Hot gas (which glows in X-rays) lags behind, while dark matter — invisible, but heavy — has already punched through.
What you’re hearing
X-rays, visible galaxies, and a separate dark-matter layer each have a voice. The dark-matter track is the strange one: mass you cannot see, turned into sound.
Layers
0:00 / 0:00
NASA sourceNASA/CXC/SAO/K. Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)
