The world is awash with the color purple — lavender flowers, amethyst gemstones, plums, eggplants and purple emperor butterflies. But if you look closely at the visible-light portion of the ...

Are you a purple person? What comes to mind when you think of the hue? The first association you make with the color is likely along the lines of “royalty” or “regal.” That’s because purple is indeed ...

The aurora, also known as the northern lights (aurora borealis) or southern lights (aurora australis), is a breathtaking natural phenomenon that has captivated humans for millennia. This remarkable ...

Easter is known for being a colorful holiday—bursts of springtime hues adorn Easter crafts, cards with adorable Easter quotes, clothing and home decor. But beyond the palette of pastels that probably ...