Science and Education Publishing Frontiers of Astronomy, Astrophysics and Cosmology 3 1 2017 1 17 Spiral Galaxies Support Rotating Space as “Dark Matter” Mechanism 1 3 EN Jay D. Rynbrandt Oronite, Chevron Research, Richmond, CA, USA FAAC2017311 10.12691/faac-3-1-1 2016 7 26 2016 11 20 2017 1 15 Spiral galaxies, from galactic collisions, provide additional support for rotating space as the enabling mechanism of high-speed, galactic, stellar orbits-currently attributed to “dark matter”. The bars, spirals and the sharp transition between the two are simply explained by rotating space. The inner bars indicate linear spatial speed increases over their radius. Smooth spiral arms form due to constant-speed, tangential rotation in outer galactic regions. And sharp transition points, between the two, indicate an abrupt change from linearly increasing spatial speed to constant rotation speed in the outer galaxies. Dark matter gravitational fields would have significant difficulty routinely producing these effects.