The aurora, also known as the northern lights (aurora borealis ... in a wide variety of colors — from green to pink to blue and purple — that can leave skywatchers both mesmerized and mystified.

This is where the mysterious purple coloring could come in. It's entirely possible that over time, this phosphor layer has peeled away from the blue light, altering the color of the street lights ...

In Vancouver, more than 100 blue or purple street lights have been reported to the city — the result of a manufacturing defect involving a coating on the light. The downtown intersection of ...

Question: I’m wondering about a light that seems to only be on at night on the traffic lights. It’s a small purple or blueish ... What you are talking about is a blue light and they are ...

Purple and blue hues are due to a manufacturer error, Keith Richardson, a senior communications manager at Duke Energy, told The News & Observer. The defect causes the light to gradually turn ...

THE FLORIDA DEPARTMENT OF TRANSPORTATION IS WORKING TO REPLACE HUNDREDS OF FAILING STREET LIGHTS AROUND CENTRAL FLORIDA. LIKE THESE THAT LOOK BLUE OR PURPLE. WESH 2 NEWS FIRST TOLD YOU LAST ...

WARTMAN: Once we vacuum all the air out of the tube, we put the gas in - either neon gas, which lights up reddish-orange, or the blue gas, which is argon with mercury in it, which lights up blue.