White, in this GALEX image, represents ultraviolet light. It shows how the spiral arms of the galaxy are distorted due to gravitational interactions with a neighboring galaxy, NGC 1510.

NASA's Hubble Space Telescope has captured vivid patches of bright pink and dark red adorning the foreground of a galaxy. This snapshot paints a striking portrait of the barred spiral galaxy NGC 5068.

The Dark Energy Camera (DECam) has captured one of the most prominent spiral galaxies in the night sky in incredible detail in a new image. Messier 83, also known as the Southern Pinwheel Galaxy ...

Bernet wondered whether galaxies’ spiral arms might cause a similar reaction in the dark matter halo. Others had theorized about this possibility but hadn’t examined it very closely.