I'm very skeptical of this because there is plenty of evidence that's explainable with dark matter but not with MOND. I believe one such thing is how the dark matter can seem to separate from the host galaxy in a collision with another galaxy. Someone can correct me as I might not be remembering that quite right. That's tough to explain with just gravity alone.<p>I really like the idea of MOND as requiring an invisible unknown particle to explain galactic rotation always smacked of the old ether theories to me. But my understanding is it's nearly impossible for a mond theory to encompass all of the current evidence for dark matter without being totally contrived.