Feb 18 • 13:29 UTC 🇮🇳 India Aaj Tak (Hindi)

Why does the color of the sky keep changing?

The article explains why the sky appears blue during the day and red during sunrise and sunset, attributing this phenomenon to scientific interactions between sunlight and the Earth's atmosphere.

The article delves into the reasons behind the color variations of the sky, highlighting that during the day, the sky appears blue due to the scattering of sunlight by the Earth's atmosphere. This scattering occurs because shorter wavelengths of light (blue) are scattered more than longer wavelengths (red) when they strike air molecules. As a result, when we look up at noon, we see a predominantly blue sky.

In contrast, during sunrise and sunset, the sun's light has to pass through a larger volume of the atmosphere, which causes more scattering of shorter wavelengths while allowing the longer wavelengths (red and orange) to dominate. This is why the sky often displays beautiful hues of pink, orange, and red at these times. The article asserts that this transformation is not a magical occurrence but a natural phenomenon governed by physics and atmospheric conditions.

Understanding the science behind the changing colors of the sky not only adds to our appreciation of nature but also allows us to grasp fundamental concepts of light and atmosphere. Such knowledge bridges science and everyday observation, making the wonders of the sky accessible to all.

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