Dark matter: An invisible glue that may not even exist

There's something in the universe that seems to hold everything together, a dark matter like glue. We can't see it, and yet it's got to be out there, right?

source https://www.dw.com/en/dark-matter-an-invisible-glue-that-may-not-even-exist/a-62744077?maca=en-rss-en-ger-1023-rdf