There's a strange hexagon shape at the north pole of the planet Saturn. It was spotted 20 years ago, and Cassini confirms it's still there. Is it some alien fortress/outpost? Or something surprisingly cooler?
Previously on Neatorama: Hexagon Spotted On Saturn
Actually, I presume he's talking about still-camera lens flare or the apparent shape of points of light in unfocused areas of a photo, but I wanted to make sure before explaining that such phenomena are due to the shape of the aperture.
http://news.softpedia.com/news/Rotating-Water-Gives-Rise-to-Geometric-Figures-23640.shtml