A stunning blue light likely caused by SpaceX Falcon 9 rocket fuel illuminated the night skies over Europe on Monday.

The universe is full of phenomena that have seemed unexplainable to human beings, but only until science had an answer for it. One among those concepts is, “Why does the sky appear blue during the day ...

A bright, blue light was cast across the sky on Saturday night after a transformer caught fire in Red Bluff, leading to ...

Palo Alto City Council member Greer Stone's regulation would target light pollution through nightly curfews and by requiring ...

If you compare it to a cloudless sky on a bright, sunny day, at most, it’s a cool gray color with a bare hint of blue. I went around my office and found everything with a sky blue hue, including last ...

For the first time since 1963, an all-female crew is being launched into space. The group, which includes singer Katy Perry ...

The Boston Red Sox are wearing yellow and light blue jerseys. The jerseys stray from the traditional red and white color scheme for the club and is part of the City Connect program by the MLB. There ...