OK, so this has nothing to do with crops, but they do seem like they must have come from aliens. On sunny mornings, this is the sight that greets us. The reflections from the playroom windows upstairs create these three Xs on our neighbor’s house. Chloe likes to run upstairs to open and close the windows, which makes the patterns move around. The only thing that stumps is is why do the windows create these Xs? The windows are just plain squares of glass, so there must be some kind of complex polarizing effect going on here. Can anyone explain this to us?