Reevaluating Ursa Major III: Black Hole Core or Dark Matter?
TL;DR Summary
Astronomers have determined that the faint satellite Ursa Major III orbiting the Milky Way is likely a star cluster held together by black holes rather than a dark-matter-dominated dwarf galaxy, resolving a major mystery about its composition.
- The Milky Way's faintest satellite may not be what astronomers thought. 'These results solve a major mystery in astrophysics' Space
- Cosmic twist: Ursa Major III is hiding a black hole core, and not dark matter Interesting Engineering
- Dark star clusters or extreme dwarf galaxies? Universe Space Tech
- Dark star clusters or extreme dwarf galaxies? Astrophysicists revisit Ursa Major III's true nature Phys.org
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