Wednesday, October 23, 2013

About the header image: October 23, 2013

At sunset, we tend to focus (if we watch at all) on the play of colors in the west as the sun slips below the horizon. How often do we think to turn to the opposite horizon to see what's going on there? But when conditions are right - as they have been lately - an amazing sight can be seen rising in the east at sunset, or setting in the west at sunrise. A pink glow appears across the sky opposite the sun, and below it there will be a dark band, growing at sunset or shrinking at sunrise. The pink glow is the reflected light of every sunset (or sunrise) taking place just below the horizon behind you. And the dark band? That's the shadow of the Earth, cast on - and through - Earth's own atmosphere! This isn't really a rare phenomenon, but how often do we actually get a chance to look for it? This picture was one of many taken by me on the Nanticoke-West Nanticoke Bridge just after sunset on October 20, 2013. The Susquehanna mirrors the sky perfectly, and the John S. Fine Bridge carries Route 29 traffic safely over the river.

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