ROCKFORD (WREX) — A layer of dust and air from the Sahara desert may cause a hazy sky and brilliant colors at sunrise and sunset over the weekend, if the sky remains clear. Thankfully, impacts outside ...
In a nutshell, it's the filtering of all the visible rays of sun by whatever is floating in the air. The longer afterglow you see in the sky after sunset is produced by the presence of a large number ...
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