Because of the leaked concept arts of Destiny, the "moon" isn't really the moon, it's an alien space ship. But if you compare that image to any other image before the leaks, it's a septagon. Look closely to those advertisement or even the news update.
Are we the Aliens? Are we invading our own planets?
[Edited on 11.28.2012 8:10 AM PST]
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Also, didn't anyone happen to notice that there's destiny symbol on the soldier's shoulder pad? It's almost like they were following their own destiny. A future war perhaps?