Auroras come in a wide variety of colors — from green to pink to blue and purple — that can leave skywatchers both mesmerized and mystified. But there's a method to this auroral madness.
We categorized their chosen colors as “blue,” pink/purple,” “red,” or “other.” Favorite colors chosen by 10-14-year-old boys and girls, and 17-48-year-old men and women in Switzerland.
While the color of a pumpkin may not mean much to some ... Teal Pumpkin Project Map for Halloween this year, click here. Purple pumpkins are used to raise awareness for epilepsy.