Thought this was really interesting. I really like the idea of dark matter, but especially the concept that it really is a form of tenuous matter that doesn't interact well with known forces and particles, as opposed to the concept that it is due to an error in the formulas of gravity at large scales. If this imagery developed by the astrophysicists at the University Observatory in Munich is accurate, no modification of the laws of gravity would seem to be able to explain it.

Thus, a small win for those of us who are fans of undetectable matter.