There's no observational evidence that I know of that indicates electric and magnetic forces are important on cosmological scales.
Jeremiah P. OstrikerThe discrepancy between what was expected and what has been observed has grown over the years, and we're straining harder and harder to fill the gap.
Jeremiah P. OstrikerIf you take a galaxy and try to make it bigger, it becomes a cluster of galaxies, not a galaxy. If you try to make it smaller than that, it seems to blow itself apart.
Jeremiah P. Ostriker