Through this meta question I discovered that there's a funny picture of a mock flying saucer crash scene on this site's error page:
I'm guessing the Stack Exchange design budget doesn't stretch as far as setting up a photoshoot like this... so what's the story behind this photo? Is it a stock photo, scene from a film, etc?
I did a google image search but it just found crackpot/conspiracy sites that used the colour original of this image for illustration.