Our eyes have two types of cells that help us see: rods and cones. In the dark, the rods take over, and they don’t care about color, just light. That’s why everything looks gray or black at night. But when there is enough light, the cones kick in, and we can finally see all the pretty colors again.
Examples
- A red apple looks gray at night but bright red in daylight.
- Your friend’s blue shirt appears black in a dimly lit room.
- The sky seems dark and colorless at night but is vivid during the day.
See also
- What Causes the Northern Lights?
- How Does a Mirror Work Exactly?
- Why Does Time Seem to Fly When You're Having Fun?
- What Causes the Sky to Change Colors at Sunset?
- Why Do Stars Twinkle?