“Something is wrong somewhere’ – stars on the edge of the Milky Way are behaving strangely. “This means that the outer stars are rotating a little slower than expected, which is a very surprising result,” says one of the authors of the study.
The Milky Way apparently has a lighter core than previously thought. The center of our galaxy could be less dense and contain less dark matter than expected. ‘There's something fishy somewhere, and it's very exciting to figure out where that is,’ says another author.