Gilf Kebir meteor craters

http://tinyurl.com/q2bss
Not archaeology, but still potentially of interest: "New research on a few of the more than 1,300 enigmatic craters found deep in Egypt's western desert has scientists scratching their heads.
The craters look like they were created by a spectacular ancient rain of meteors, or perhaps from a vast eruption of steam and gas from inside the Earth. Or maybe from something else entirely."