Measuring the rotation of galaxies By: Reflective Layer

Galaxy rotation under the influence of dark matter By: John Middendorf

The Galaxy Rotation Curve An Indication of Dark Matter By: AstroNaught

There is No Galactic Rotation Problem By: SpaceWeatherNews (S0)

Why Do Galaxies Rotate By: World Science Festival

Journey to the Andromeda Galaxy Faster Than the Speed of Light 4K By: V101 SPACE

All Galaxies Spin The Same By: Cosmoknowledge

Simulation of rotating galaxy with flat rotation curve By: Astronomy Simulations