was just arriveing home whenwe got out of the truck i commented on a star that was changeing colors when i saw something rectangular and rather large moveing very fast in a straight line almost directly over head it was totally silent we watched it fly directly over us at 1500ft or more it was a dull brownish color the first thing that came to mind was a gigantic thunderbird but i could see well enough to see no head tail or body and was far to large to be any bird it was almost a perfect rectangle with some verticle and symetrically spaced lines running straight down the width of the object when seen from directly underneath as it went straight over head this thing was rock soild in its structure and flight path and again was moveing far to fast and large to be an animal also no wind what so ever an eagle or even the fastest hawk diveing at terminal velocity wouldnt have matched its speed as we watched it for only six seconds as it flew directly over head and was quickly out of sight we were dumbfounded at what we were seeing something you dont really experience maybe once in a lifetime if your lucky.ive added a sketch as good as possible with a paint program