It's usually pretty easy to tell which new theories can be discarded because they don't explain all the observations that lead us to the dark matter theory in the first place (like e.g. the Bullet Cluster). Or it would be easy if media wasn't full of uncritical clickbait fluff pieces like this that rather make sensationalist claims than contextualizing how a new study fits into the existing science.

[–] Drunemeton@lemmy.world 9 points 7 hours ago

It’s interesting that the article mentions them looking for tests, yet doesn’t mention applying the theory to things we’ve already tested with other predictions. The Bullet Cluster, for example.

That seems really suspect to me. It would seem ‘a given’ to run the hypothesis against that which is already measured to validate it, or not. But to ignore established metrics and go out looking seems to be a fish looking for fishermen.