http://arxiv.org/pdf/1508.04001v2.pdf Although i am not a proponent of MOND this paper gives an alternative to the missing baryons problem The colliding ‘Bullet Cluster’ is often adduced as strong evidence for DM, with the understood – 3 – implication that it is evidence for the non-standard-model particle DM that is invoked by the mainstream to fill the Universe. In the case of the Bullet, most of the baryons (in the form of hot gas) are found in the collision zone, while the ‘DM’, as deduced from weak lansing, is mainly in two regions flanking the collision zone, where the galaxies from the colliding clusters are found, after they went through, hardly affected by the collision. The claim then goes, that modifieddynamics alternatives to DM perforce predict that the ‘phantom DM’ should appear where most of the baryons are, unlike what is seen in the Bullet . This statement, in itself, is not correct. Modified dynamics theories, including MOND, do not predict that the discrepancies should follow the baryons. It is true, though, that purist MOND does not account for the observed geometry of the Bullet without invoking some yet undetected matter in the system. However, just as everything that glitters is not gold, everything that is dark is not the DM. What is ‘seen’ in the Bullet might well be just an inkling of small amounts of yet undetected baryons indigenous to clusters.