ST. LOUIS – The sky is always changing colors—from a bright blue on a clear day, to red and orange sunrises or sunsets, or multiple colors of a rainbow—there’s a lot going on that we don’t always ...

The color of the sky is determined by the angle of the sun in the sky (how much atmosphere the light needs to pass through) and how the light is scattered by air molecules in the atmosphere. Since ...

In the first fractions of a second after the Big Bang, the universe ballooned outward at a speed that still defies explanation, stretching space itself before stars or even atoms had a chance to form.

THE blue color of the sky on a clear day is familiar to all. And yet how many have considered the source of this delicate mantle of azure which Nature spreads over the dome of the heavens? The ...

We experience beautiful sunrises and sunsets here in Michigan all the time. Cotton candy-colored sunsets are my favorite, and I'm sure you have your favorites too. Have you ever wondered why we see ...