July 28, 2005. Rigva, Latvia. Photographer states: Aliens starshipbottom type cloud over Vansu bridge. Weather report for tomorrow - don't go for fishing because of unstable weather. HM? Could it be aliens? Sort of reminds me of Space Shuttle tiles. Seriously, though. Those are seriously peculiar clouds. The density alone is enough to wonder where all the stagnant water is? you know what I mean?