The light that comes out is purple rather than blue because with the loss of some of the yellow layer, the mix of blue and yellow light tilts strongly toward blue – creating a light that appears ...

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 ...

Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t make any sense, but ...

Purple, a color often associated with royalty and creativity, isn't a true color of light. Instead, it's a creation of our ...

As Earth's atmospheric composition is dominated by oxygen and nitrogen, aurorae tend to give off a green hue (from the former) or a blue–pink–purple light (from the latter.) The geomagnetic ...