Study Explains Why Galaxies Stop Creating Stars
Friday, July 8, 2016 - 12:31
in Astronomy & Space
Galaxies come in three main shapes – elliptical, spiral (such as the Milky Way) and irregular. They can be massive or small. To add to this mix, galaxies can also be blue or red. Blue galaxies are still actively forming stars. Red ones mostly are not currently forming stars, and are considered passive. The processes […]