Do satellite galaxies point to modified gravity?

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Do satellite galaxies point to modified gravity?

A recent study of the satellite galaxies surrounding the Milky Way casts doubt on existing models of dark matter — according to its authors. The locations of the galaxies suggest that they should not contain any dark matter — but the motions of their constituent stars cannot be explained without invoking the elusive dark stuff. According to the researchers, this contradiction could provide support for alternative theories of gravity such as modified Newtonian dynamics (MOND).


Lees meer ... Physicsworld


Wikipedia ... Modified Newtonian dynamics
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