I have talked a lot about magnetic flux tubes carrying dark matter identified as phases of matter with non-standard value of Planck constant. They define basic structures of TGD Universe in all scales. The formation of galaxies and even stars involves these structures in an essential manner. They play also a key role also in biology and even bio-molecular physics.
Dark magnetic energy of flux tubes can be identified dark energy and this energy replaces the energy of inflaton field inflationary scenario. Ordinary and dark matter are created in the decay of this magnetic energy to particles just as ordinary particles are created in the decay of inflaton vacuum. Magnetic tension along flux tubes generates negative "pressure" inducing accelerated cosmic expansion, the magnetic fields filling the Universe have an explanation in terms of a gradual thickening of primordial cosmic strings having 2-D string orbit as M4 projection, etc., etc..
For these reasons, it is highly rewarding to learn that experimentalists are now discovering these structures. See the article
Giant Dark Matter Bridge Between Galaxy Clusters Discovered telling about dark matter "strings".