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Why Do Stars Twinkle?

Why Do Stars Twinkle?

星星为什么会闪烁?

  1. Stars shine with steady light far out in space.
  2. Earth’s air is not still — it moves and changes.
  3. Warm and cool air layers bend starlight in different ways.
  4. This bending makes the light seem to jump or shimmer.
  5. Planets usually do not twinkle much.
  6. They look bigger in our sky, so light bends less.
  7. Twinkling is strongest near the horizon.
  8. There, light passes through more air before reaching our eyes.
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