Astrogeology Science Center

New Descriptor Term and Theme Approved for Use on Titan

6 November 2014 The IAU Working Group for Planetary Nomenclature has approved the descriptor term fretum for use on Titan. The theme will be "Names of characters from the Foundation series of science fiction novels by American author Isaac Asimov (1920-1992)." For more information, see the list of descriptor terms and Titan themes in the Gazetteer of Planetary Nomenclature.