... Credit: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: Most moons have no haze layer at all - why does Titan have two? Images from the Cassini spacecraft that slipped into orbit around Saturn last month confirm that the Solar System's most mysterious moon is surrounded not only by a thick atmosphere but also by two distinct spheres of haze . ... Publications with keywords: Titan - cassini spacecraft - atmosphere . Publications with words: Titan - cassini spacecraft - atmosphere . ...