dwarf galaxy
A 'Ghost Galaxy' May Have Given the Milky Way Its Signature Swirl
The Milky Way's edge is still wobbling due to a collision with a dwarf galaxy loaded with dark matter.
A Dead Galaxy at the Edge of the Milky Way Is a Dark Matter Bonanza
Triangulum II might have the highest dark matter ratio of any known galaxy.
There's a Dark Matter 'Bridge' Between the Milky Way and the Virgo Cluster
Astrophysicists offer an explanation for a lingering mystery: the disc-like distributions of satellite dwarf galaxies.
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