They're called WIMPS-weakly interacting particles. The sun puts out tons of neutrinos and they go right through you. So do axions. They only have an effect on the large scale by their combined gravitational field, like in spiral galaxies and other large scale dynamics. On small scales, they are WIMPS.
According to Newton, that's not possible. If there are just a few of these 'wimps' then they'd get trapped in Earth gravity or even my gravity. Eventually there would be a huge 'mass' of these 'wimps' all coalescing around Earth, me, and my carpet.
Nothing can 'weakly' interact gravitationally. Gravity either affects something or it does not. And if these 'wimps' have mass, they have gravity and therefore would be subject to Newtons Laws.
Ergo, 'dark matter' is a bunch of made up hokum so astrophysicists can 'explain' something they can't explain.
It's bunk.
L