TechWired1h ago
These ‘Ghostly’ Galaxies Have Lost Their Dark Matter
TL;DRGalaxies lost their dark matter in collisions, proving dark matter actually exists.
Why it matters: Direct evidence of dark matter's physical effects strengthens our understanding of universe composition.
The galaxies’ dark matter was ejected during a collision, but ironically, its absence is some of the best evidence of the elusive substance yet.
Read full articleSource: Wired · Opens in new tab