A shot in the dark ✨ While most galaxies shine bright, a rare type remains nearly invisible — low-surface-brightness galaxies dominated by dark matter and containing only a scattering of faint stars. (Dark matter is an invisible form of matter that does not reflect, emit, or absorb light.) Hubble managed to identify one such elusive object, dubbed CDG-2, by revealing a close collection of four globular star clusters in the Perseus galaxy cluster, 300 million light-years away. Follow-up studies t