The header picture comes from a photo by Michael Yon, a prominent internet based war reporter who has reported extensively on the Iraq War as well as the War in Afghanistan. He has kindly made the photo available for public use. I recommend checking out the original picture- it’s spectacular. The link is to his personal site, so you can check out his work in general as well.
Michael Yon will be releasing a book on the Iraq War shortly.
(Hattip: Instapundit)