galaxies_2

Colour image of the starlight emitted by a nearby spiral galaxy called UGC 7321. Stars in this galaxy lie in a disc, similar to that of our galaxy, the Milky Way. We see this disc nearly perfectly edge-on. Other sources in the image are foreground or background objects (galaxies and stars), unrelated to galaxy UGC 7321. Credit: Credit: M. Fumagalli/T. Theuns/S. Berry

Read more at: https://phys.org/news/2017-03-universe-ultraviolet-background-clues-galaxies.html#jCp