When you see a bright red river or a lake that glows a vivid green color, you probably think it belongs on another planet. But these incredibly striking bodies of water are right here on Earth. Here are the most beautiful and alien-looking rivers and lakes, sporting bizarre colors.
This is the Aral Sea, which was once one of the four largest lakes in the world, until the Soviet Union diverted the rivers that fed it. Now full of stranded ships, it's just one of the world's dying lakes.
Saturn's atmosphere-shrouded moon Titan is dotted with methane lakes, giving it a geography like Saskatchewan or the Great Lakes region in the US. But why are all the lakes grouped in the northern hemisphere of the moon?