Why do stars twinkle?
Stars' Wiggly Ride
Why do stars twinkle?
Look up on a clear night. The stars seem to wink and shimmer, like tiny lights flashing on and off. But here's the strange part: stars aren't actually doing anything. They're just sitting out there in space, shining steadily. So why do they look like they're dancing?
The trick happens much closer to home—in the air above your head. Earth is wrapped in a thick blanket of atmosphere, miles and miles of air stacked up from the ground to the edge of space. And that air? It's never still.
