TSoDS #3: "We call it dark... because we don't know..."
Sensitive Dark Matter Detector Draws a Blank
And the full quote:
"We call it the dark sector precisely because we don't know what accounts for most of the energy and mass in the universe."
How about we start calling "Dark Matter" Whole Cloth?
Just because matter is not detectable, does not make it exotic. It makes it non reactive. Current IR detection capabilities requires super cold sensor temperatures. As the ability to cool these sensors for longer duration observations advances, more matter is detected.
Space is not empty. It is full of particles in varying states of charge. When these charges are in equilibrium with it's surroundings, they radiate little if any IR. When a body of opposing charge moves thru such a medium, that interaction generates radiation starting at low and IR and can reach visible (cometary or nebular filaments) range or higher (UV,MW,X,G) if a catastrophic breakdown of the charge separation between particles, or charge sheets surrounding the particle occurs.
Moral of this story:
Just because you can't see something, does not mean it's some new form of matter.