Are these really Unidentified Flying Object? Yes, we don't know what they are. Are they extraterrestrial? I don't know. The map shows an open space behind the buildings. Could there be a park or open field where someone is flying a set of kits tied together in this formation? I have seen kits like that. Or, could it be a bunch of mylar balloons tied together and by chance are in this diamond formation as the picture was taken? An other possibility is a defect in the photograph. Google's street view photos are know for distortions as the picture are quick and dirty not much for re-shoots if there was a defect. Sorry to rain on your parade but if you going to make extreme claims then you need extreme evidence to support it, and one fuzzy photo is not extreme evidence. Is there extraterrestrial life out there? I don't know but it is very likely. Are they visiting our planet? If they are it would be wise to keep their distance from us. Terrains (Earthlings) are paranoid, violent, and still kill much of their own species. Not to mention what we might do if a little green man showed up one day to say hi.