With three simple ingredients, a red, a green, and a blue spotlight, you can make any color of the rainbow. Learn more on this Moment of Science.
What's the best thing about having a rocket-powered car? If you go fast enough, the red lights look green!
Do you know anything about the Jamaican click beetle? It’s a bioluminescent insect and it’s belly glows orange. Learn more on this Moment of Science.
If you look at the horizon at sunset–exactly as the last sliver of sun disappears–you might see a flash of brilliant green blaze across the sky.
The back of your eye, called the retina, has two kinds of cells: rods and cones. In bright light the cones are what we use, while in dim light the cones are less active and the rods take over.