AstronomyStrange arrangement of Milky Way's groupie galaxies may undermine...

Strange arrangement of Milky Way’s groupie galaxies may undermine dark matter

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Scientists might have defined the mysterious distribution of small satellite galaxies round our Milky Way that has lengthy puzzled astronomers, however not everyone seems to be in settlement.

The Milky Way galaxy is surrounded by smaller dwarf galaxies. The traditional mannequin of galaxy development proposes that these small galaxies have been trapped by a large halo of dark matter, materials that scientists cannot see however that seems to form the universe. The dwarf galaxies then got here collectively to type bigger galaxies, and the dwarfs that we see in the present day are the leftovers of that course of, the idea goes. Nonetheless, if so then astronomers would count on the surviving dwarf galaxies to be scattered randomly across the Milky Way’s dark matter halo. As an alternative, they appear to be confined to a single airplane that cuts by means of our galaxy at an angle, an oddity that threatens our understanding of the dark matter–dominated universe.





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