Why is the sky blue on Earth, yet space appears pitch black? This video uncovers the science behind one of nature’s most ...

While the Egyptian sky is very bright, the white light is so pronounced that the blue does not appear particularly attractive.

The sky we see today is blue because of Rayleigh scattering. Sunlight contains all the colours of the spectrum, but shorter wavelengths, like blue and violet, scatter more when they hit air molecules.

The sky looks blue on a sunny day – but at night we can see the faint glow of its true colour. The sky isn’t just blue – airglow makes it green, yellow and red too Home ...

Pitch black sky turned blue color as object enters atmosphere over US On Saturday morning, residents in a US state were stunned to see the pitch black sky seemingly turn into a gorgeous blue color.