Tag Info

New answers tagged


Clouds are the color of whatever wavelength of light strikes them. Before sunrise and after sunset, when the sky darkens but light comes from beyond the horizon, sunlight passes through a greater thickness of atmosphere than when it is shining straight down from above. When the Sun is directly overhead, Rayleigh scattering sorts out short-wavelength ...


The colour you see in the sky on cloudy nights is due to the reflection of city lights off the clouds. In rural areas, a cloudy night is, as you expected, significantly darker. However, the massive amount of light given off in urban areas reflects back to Earth when there is cloud cover. And so, you see a red-orange hue, similar to the overall colour ...

Top 50 recent answers are included