PITTSBURGH (KDKA) - If you asked someone to color a picture of the Sun, most people would likely choose the yellow crayon. Depending on the time of day, because we observe the Sun through our ...

We have always thought or imagined that the Sun is yellow, or even red. But if you stand outside on a clear afternoon, you’ll notice something fascinating: the sunlight around you feels almost ...

One of the best visualizations ever produced of the spectrum of light from our glorious Sun reveals some mysterious holes in its array of colors. Most of the thousands of dark Fraunhofer lines in the ...