Astronomers map the invisible ocean of dark matter swirling outside the Milky Way – fr

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Astronomers map the invisible ocean of dark matter swirling outside the Milky Way – fr


A mysterious wake of stars, stirred by a small galaxy about to collide with the Milky Way, could be about to unravel the mysteries of dark matter.

The star trail, located outside the starry spiral arms of the Milky Way’s central disk in a region called the galactic halo, is dragged along with the cosmic wake of a dwarf galaxy orbiting the Milky Way, according to one new sky map created by astronomers.

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