We just had a great weekend of northern lights. All of the pictures and videos show different looks in the northern lights. Why? We saw pictures and videos of red, green, blue and purple northern ...

Have you ever wondered why chicken eggs can be different colors? While most eggs are white or brown, they also come in colors like cream, pink, blue and green. In addition — and this is no “yolk” — ...

Have you ever wondered why fast food restaurants are plastered with red and yellow? Or why hospitals favor calming blues and greens? The truth is, colors are ...