Astrophotography often misrepresents the naked-eye appearance of celestial colors, as cameras capture saturated colors unattainable by human vision due to limitations in photoreceptor sensitivity. The ...

Artist’s impression of the old white dwarfs WDJ2147-4035 and WDJ1922+0233 surrounded by orbiting planetary debris, which will accrete onto the stars and pollute their atmospheres. WDJ2147-4035 is ...

After the holidays end, winter can be a gray time of year. As I look across my backyard, the ground is covered with snow and the trees are bare. Not much color out there. But what my monochromatic ...

When looking up on a cloudless night, do you notice that stars can sometimes show as different colors? You may even notice yellow, red, orange, and blue stars - not just white. A star's color can ...

One of the pleasures of stargazing is noticing and enjoying the various colors that stars display in dark skies. These hues offer direct visual evidence of how stellar temperatures vary. A good many ...