An article published in the journal “Science Advances” reports a study that offers some answers to the mystery of the origin and composition of the dunes on Titan, one of the moons of the planet Saturn particularly interesting for many reasons that include the formation of many organic compounds. A team of researchers led by physical chemist Ralf I. Kaiser of the University of Hawaii at Manoa examined data collected during the Cassini-Huygens mission and computer simulations whose results indicate that acetylene exposed to cosmic rays can form materials that make up Titan’s dunes.