The sound pierces through the yellow and orange autumn maple leaves on a crisp blue sky day. I sit enjoying the sunshine, calm winds and the smell of autumn in the air. Again, I hear the blue jay ...

If Earth had no atmosphere like the Moon there would be no scattering, and the sky would remain black, even in daylight ...

shorter wavelengths of light scatter a lot better.So blue light has a much easier time getting into our eyeballs when we look ...

It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something ...

Blue Monday is a term coined by the UK travel company Sky Travel in a 2005 press release. They identified it as the most depressing day of the year, citing factors such as post-holiday financial ...