One of the first things you learn is that the sky is blue. Everyone knows that, right? But, did they ever explain to you why the sky is blue?

The blue sky above the Earth is so integral to the human experience we don't often question it, but there is a scientific explanation as to why the sky is blue.

Mount Blue Sky is closed this year. But there’s another, more difficult way to climb this 14er. The most commonly used trail for hiking the popular peak is inaccessible this summer due to a road ...