'Impossible' Cloud On Saturn's Moon Titan May Resemble Earth's Ozone Killers

A strange cloud on Titan that seems to appear out of nowhere may form through process similar to one that depletes the ozone layer at Earth's poles. The weird cloud, which NASA officials described as "impossible" in a statement, is made of dicyanoacetylene (C4N2), which is one of several hydrocarbons that give Titan's atmosphere it's orange-brown hue. One cloud just like it was first seen by Voyager 1, which passed by Saturn in 1980.