Dark Matter theoretically only interacts with baryonic matter through gravity, and it's only in that measurable difference of gravitational interaction that differs from our understanding of gravity's effect on celestial objects that theory of dark matter is derived. Short version is by our understanding of gravity celestial objects do not behave in a manner we expect so, we developed the dark matter theory because we were missing a ton of mass from our equation to explain celestial movement. It could just be that our understanding of gravity is short sighted, however; it's unlikely. I believe in the existence of both dark matter and dark energy, you should ask about dark energy though, it's much more fun and interesting.
This post was edited by crunkinator on Feb 1 2022 08:44am