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Story summary
- A new study proposes the Milky Way's center contains a dense dark-matter core instead of Sagittarius A* (Sgr A*).
- The core and surrounding dark-matter halo would form a single structure, with a compact core and diffuse halo.
- The idea relies on the European Space Agency's Gaia mission data and explains stellar orbits and the Milky Way's rotation, though more observations are needed to distinguish it from a black-hole model.
