Sky gazers in several U.S. states could get a colorful glimpse of the northern lights as we enter the weekend, thanks to a recent geomagnetic storm.

Discover the hidden meanings behind colored porch lights in Montana. Learn how each hue symbolizes support for veterans, ...

According to Scientific American, the purple hue isn’t exactly ... yellow phosphor that filters blue wavelengths and ultimately produces a bright white light. The thickness of that layer ...

Traditionally, paved roads and pedestrian walkways have been illuminated by streetlights emitting a bright white, orange, or yellow glow. The aim is visibility, not aesthetics, and rarely will ...