But it has to be there!

Invisible and immeasurable, Dark Matter must exist, physicists say.

But the whatever it is refuses to be found.

“Dark matter is not only the most abundant form of matter in the Universe, it's also the most mysterious. Whereas all the other particles we know of — atoms, neutrinos, photons, antimatter and all the other particles in the Standard Model — interact through at least one of the known quantum forces, dark matter appears to interact through gravity alone.” – Ethan Siegel

https://www.forbes.com/sites/startswithabang/2019/02/22/the-wimp-miracle-is-dead-as-dark-matter-experiments-come-up-empty-again/#25ac17ed6dbc

Link at maggiesfarm.

From the little I have read before, dark matter fills all that space between everything. Or something.