White Dwarfs Aren’t Just White. Scientists Discover Dying Stars Turning Pink and Green

Astronomers find that a white dwarf’s density and the kind of material it absorbed from its surroundings can produce a rainbow of shades in the star’s atmosphere.

Source: https://www.wired.com/story/white-dwarfs-arent-just-white-scientists-discover-dying-stars-turning-pink-and-green/