What Makes Some Stars Twinkle More Than Others?

Stars look like they're blinking in the sky, and not all of them do it the same way. Think of a lighthouse, when you see it from far away on a wavy sea, its light flickers because the waves are changing how much of the light reaches your eyes. The same thing happens with stars: when light comes through Earth's atmosphere, the air moves and bends the starlight in different ways, making some stars seem to blink more than others.