A stunning blue light likely caused by SpaceX Falcon 9 rocket fuel illuminated the night skies over Europe on Monday.

I can't help but feel blue about the latest rumor that Apple's forthcoming iPhone 17 Air will take flight in a subtle, light-hued color called sky blue. Sky blue isn't a new color for Apple.

The difference between how light behaves on Earth and how it travels in the emptiness of space, explains the beautiful blue skies and the vast darkness of space. Why is the sky blue in colour?

The Sky Blue finish on the MacBook Air is not very saturated, and the color's appearance can vary based on lighting conditions. Apple describes it as "a beautiful, metallic light blue that creates ...