I was looking the crop circle link two days ago and today a friend send me a link, where was a japanese simulation of an asteroid that hits the Earth. Here it is:
http://media2.yourdailymedia.com/files/wm4kDcsqhuyY.wmv
The picture of the impact raising a corona of water stroked me, because looked like the crop circles picture from:
http://www.telegraph.co.uk/news/news...the-world.html
I took from the movie clip the printscreen on the moment of impact and put aside the crop circle image. Do you see a resemblance?