EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something to add.
But that’s literally true and fully acknowledged by the physics and astronomy fields. It’s why those things received the names “dark.” Because currently we can’t see what’s causing those effects. And there are currently physicists and astronomers who spend their time researching these effects in hopes of publishing that exact “Hey! I figured out what it is” paper. Then we’ll praise that person, add their name to the pantheon and fail to acknowledge the hoards of other people who contributed to the foundational research that allowed them to finally figure it out.
Same as it ever was.