So, how is it that such precise design details of the Avebury Henge “ghost” formation, as we see in the Google Earth satellite image above, appear to have remained so sharply defined and firmly locked into the memory of this site, 18 months after the original crop circle occurred?

“Ghost” crop circles are relatively rare. I can identify exactly zero peer-reviewed, published scientific studies specifically addressing “ghost” crop circles. The sparse attention these enigmatic events have received has been only via occasional photographs and a few anecdotal reports. Clear satellite photos of “ghost” crop circles like this one, at least any available in the public domain, seem to be rare indeed!