I am sure you have your fair share of nutters on this forum, and you can pass me off as this if you choose to. However, this is a perfectly reasonable question to people who might know - I have been wondering about this structure on the moon, shown in an official Clementine Mission photo. square thing on the moon Can anyone shed some light on what it might be please? As you can see, at 1pixel=1Kilometre it must be a massive structure, kilometres wide and long. The only explanation I have had is that it must be an anomoly on the digital image, but it seems too detailed for that.