As a result, purple and magenta are known as "nonspectral" colors, because they don't really exist as actual electromagnetic ...

In a procedure called psoralen ultraviolet light treatment (PUVA), patients take a drug or apply a lotion to make their skin sensitive to light. Then a UV light is shone on the skin.

That's a spotlight we can get behind! Next, find out what it means if you see a purple-painted fence. The post If You See a Purple Porch Light, This Is What It Means appeared first on Reader's Digest.

STEVE, or Strong Thermal Emission Velocity Enhancement, is an atmospheric phenomenon that accompanies auroras, such as an aurora borealis, more commonly known as the Northern Lights.

Suddenly finding yourself in a street bathed in garish purple light can be unsettling. But a bigger concern is that this light can change how drivers and pedestrians perceive their surroundings.

Knewz.com noted that Violet has its own wavelength of light, around 380–450 nanometers, and is part of the electromagnetic spectrum. Purple, on the other hand, cannot be found anywhere.

It’s called Steve. The rare light spectacle has caused a bit of buzz this year as the sun is entering its most active period, ramping up the number of dazzling natural phenomena that appear in ...

Grandma Hill lives in Natomas and got the video on her cell phone of little Johnny, 8, and Audrey, 5, praying about this mysterious purple light. "Hey, God. Please help me.

Several viewers called KCRA 3 asking about a purple light in the sky on Monday night. The Sacramento Kings confirm that every time the team wins, they will light their "Kings Victory Beam." ...

The drug is called Brorphine, or "purple heroin," and claimed the life of a Jefferson Parish resident. According to Dr. Gerry Cvitanovich, the Jefferson Parish coroner, there have been 30 deaths ...