Astronomers have found a planet with water known as HD 189733b.
Animals have mastered blending in with their surroundings. Yet, why do some animals have lighter fur on their bellies than on their backs?
You're driving along at night and suddenly you're blinded by light. You flick the tab on your rear-view mirror... what happens next?
Have you seen cars with headlights that appear blue?
Have you ever wondered what the speed of light meant?
Do you love being the center of attention or a bright, incandescent lamp?
These bouncing balls show you the path light would take when it reflects off the back of a real spoon (although light bounces into your eye, not out of it).
The narrow range of angles at which the colors are reflected is the key to why rainbows must be curved.
Green sunfish can see quite well in water that is thick and murky. How?