5 Oct, 2025
Credit: Pexels
Stars are extremely distant, so their light reaches us as a very narrow, single ray, much like a tiny point of light.
Credit: Scientific American
Earth's atmosphere isn't uniform; it's a chaotic mix of layers with varying temperatures and densities, affected by winds and turbulence.
Credit: Nature
When starlight enters our atmosphere, it passes through these different layers, causing the light to bend, or refract, multiple times.
Credit: Stock Cake
The constant movement and changing conditions in the atmosphere cause starlight to flicker, making stars appear to brighten and dim, or "twinkle."
Credit: Stock Cake