Yes, unless it’s not. Ultimately “dark matter” just means we don’t know how our current models match observed reality without a bunch of (presumably) matter we can’t detect, but it’s entirely possible the models or the observations are just fucking wrong.
Supposedly the presence of “dark matter” was actually detected last year, so we might be figuring out how to make observations match models, but that doesn’t mean we know what it is either.
Is dark matter still a thing?
Yes, unless it’s not. Ultimately “dark matter” just means we don’t know how our current models match observed reality without a bunch of (presumably) matter we can’t detect, but it’s entirely possible the models or the observations are just fucking wrong.
Supposedly the presence of “dark matter” was actually detected last year, so we might be figuring out how to make observations match models, but that doesn’t mean we know what it is either.