A blue sky sharply contrasts with this backdrop, which also enhances the blue appearance of the sky. I think it has something to do with complementary colors, but I am not the expert on that.

The Color of Perception Sometimes, under direct sunlight, clouds will appear gray or dark gray against a blue sky or larger backdrop of white clouds. There are usually two reasons for this effect.

The Blue Supermoon: A Gem in the Night Sky Wednesday’s full moon, the second in August, was a celestial rarity. It was also bigger and brighter than usual.

On a clear, sunny day, the sky above us often glows a brilliant blue, a sight so commonplace that many of us rarely stop to question why. While this natural phenomenon might seem simple to explain ...

Every day, members of the Cloud Appreciation Society post photos of the sky from around the world. This is why they stop to look up.

“The Sky Is Blue” is a trance-adjacent four-on-the-floor club track that overtakes the surrounding space like a fog despite its thumping beat and neon synth melodies.

Amazon.com’s cloud business is offering a small sliver of light. The $1.2 trillion e-commerce giant increased third-quarter AWS revenue 12% year-over-year to $23 billion. The performance matches ...

A serene blue lake lies nestled between towering mountain peaks, its surface mirroring the shifting hues of the sky. Wisps of clouds drift gently along the rugged slopes, adding a dreamlike ...

From the ephemeral red of a sunset to the elusive, multi-coloured southern lights, what is the science behind colours in the sky — and can those colours tell us anything about the weather?