Egypt and Libya, March 19 - April 2, 2006 / 20060329k_1226pm_HorizonGlowBegins
Ruth Milner, rmilner plus web at bookofmarvels dot net
12:26pm local time: Very quickly the horizon glow began to appear. This is the same sort of phenomenon as sunset, because the atmosphere above you becomes darkened, while the horizon shows where it is still lit. Again, in reality it was much darker than this photo shows.
