No, this study didn't deal with dark matter, that's not the missing matter they're taking about. They've known that the ordinary matter in the galaxies only accounts for a small fraction of the matter in the universe, and there were theories about how much matter was in the space between galaxies. This study looked at radio waves being emitted by distant sources, and looked at how much those waves were defracted by pasted through matter, which corroborated that yes, there's a lot of matter between galaxies.

[–] Yareckt@lemmynsfw.com 4 points 1 day ago (1 children)

So the stuff that was corroborated in this study was part of the fraction of matter we already had an explanation for, right?

[–] AFKBRBChocolate@lemmy.world 5 points 1 day ago

Yeah, it validated the theory.

[–] Bravo@eviltoast.org 6 points 1 day ago (1 children)

My understanding is that we still don't know what it IS, but we now have corroboration that it EXISTS and roughly what it WEIGHS.

[–] Yareckt@lemmynsfw.com 2 points 1 day ago

Yes thats also my layman understanding