  Owing to the renewed interest in dark matter after the upgrade of the large
hadron collider and its dedication to dark matter research it is timely to
reassess the whole problem. Considering dark matter is one way to reconcile the
discrepancy between the velocity of matter in the outer regions of galaxies and
the observed galactic mass. So far, no credible candidate for dark matter has
been identified. Here, we develop a model accounting for observations by
rotations and interactions between rotating objects analogous to magnetic
fields and interactions with moving charges. The magnitude of these fields is
described by a fundamental constant of the order 10-41kg-1. The same
interactions can be observed in the solar system where they lead to small
changes in planetary orbits.
