[mbarker12474]

Thanks for posting an article that brings out people who are proud of their ignorance.

I didn't know there were so many astrophysicists and quantum physicists here on FR.

[Telepathic Intruder]

You don’t have to be a physicist and there are lot of books and articles on the subject. All it means is that galaxies and galaxy clusters are spinning faster than the matter we can see (i.e. stars and gas) account for. There are lots of hypotheses, including just something wrong with our understanding of gravity. But other than observation of visible matter, there are no real theories supporting it. So it’s anyone’s guess basically.