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 ...

Visible light travels in electromagnetic waves, which we see as the colors of the rainbow. Different colors have different wavelengths of light. Violet and blue have the shortest wavelengths, whereas ...

Everyone knows Yuri Gagarin as the first person to go to space. But was he? Literary historian Vladimir Brljak tells the tale of the intrepid balloonists who first flew beyond the blue terrestrial sky ...

A total lunar eclipse is about to be visible in the night sky Thursday night into Friday morning, when the moon should transition from appearing bright white to orange-red. Most of the Western ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS – The sky is always changing ...