Here’s a reason to keep eyes on the skies while dealing with dung on the ground: Variations in the color of light in different parts of the sky can act as a compass, at least if you’re a dung beetle.

Certain types of light can affect your mood and quality of sleep. Red light may help, while blue light from phones or screens could interfere with falling asleep or the quality of your rest. You may ...

How does color work, and how does the type of light source you use affect the colors you see? Appliance Science looks at the science of light and color. Richard Baguley Richard Baguley has been ...