The conversation between human and AI assistant.
Why sometimes at night sky looks brown in colour?
Can you explain to me why sometimes the night sky looks brown in color?
That's a great question! The night sky can appear brownish or reddish near the horizon due to atmospheric scattering. When light from the sun or moon enters the Earth's atmosphere, it gets scattered by particles such as dust and air molecules. Blue light gets scattered more than other colors, which is why the sky appears blue during the day. But at sunrise or sunset, when the light has to travel through more of the Earth's atmosphere, the blue light gets scattered even more, leaving behind the colors with longer wavelengths, like red and orange. This can create a brownish or reddish hue at the horizon.