Here’s what gives a summer sunset its pretty colour
Ottawa Citizen

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By Tom Spears, Ottawa Citizen, August 3, 2016

This summer, Postmedia’s Tom Spears brings you the often offbeat science behind the season that calls us to go outdoors. It’s all part of a series we call the Science of Summer. Today’s story explains the science behind what makes a sunset pretty. The vivid colours in the sky at sunset look like art, but underlying them is the physics of light and colour, as fascinating as the colours themselves.

Wayne Hocking of Western University’s physics department has spent years studying our atmosphere, and knows a lot about what it does to light.