Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. One of the first questions a curious child often asks about the natural ...

Forget the red state-blue state stuff -- Sky Blue, a Korean animated feature set in 2142, paints a much more drastic picture of a divided world. In Sky Blue, what's left of the human population lives ...

Before we can understand why the sky looks bluer in the fall, it's important to first know why the sky appears blue in the first place. The sun emits white light, and due to Rayleigh scattering (the ...

The sky is blue — physicists tell us — because blue light in the sun's rays bends more than red light. But this extra bending, or scattering, applies just as much to violet light, so it is reasonable ...

Aside from a new color, the M4 MacBook Air looks a whole lot like last year’s model. And we’ve got the hands-on experience ...

Also known as "blue field entoptic phenomenon" and "blue sky sprites", the little dots move in time with your heartbeat.

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Daniel Brown, Lecturer in Astronomy, Nottingham Trent ...