Less air = bluer skies

We all live in a thick layer of air called the atmosphere. On average it is about fifty miles thick.

But as you go up, the atmosphere gets noticeably thinner. At the top of Mount Evans (14,130 feet or 4306.8 meters), there is 1/3 less air than at sea level. That means less air between me and the deep blue sky.

Amy on Mount Evans. Longs Peak, sixty miles away in Rocky Mountain National Park, is in the background.
Yes, the sky really was THAT blue.

Amy on Mount Evans. Longs Peak, sixty miles away in Rocky Mountain National Park, is in the background.
Yes, the sky really was THAT blue.

Published by Amy Law

Amy Law is a science geek. She feels about science the way some people feel about music, or art, or sports – a total and complete emotional connection. She thinks in science. For Amy, there’s nothing better than helping people see the beauty of science as she does. She loves to untangle a complicated subject into its parts, explaining it so that anybody can understand what’s happening. Let her show you her world...

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