Astrogeology Science Center

Descriptor Term Mare Maria Approved for use on Titan

16 November 2007

The descriptor term mare/maria has been approved for use on Titan for large expanses of dark materials thought to be liquid hydrocarbons. The theme for maria on Titan is "Sea creatures from myth and literature." Please see the Gazetteer of Planetary Nomenclature for more information.

Titan North Pole Image

15 October 2007

An image mosaic of the north pole area of Titan showing the newly named lacus features is now linked to the Gazetteer of Planetary Nomenclature.

Cerberus Fossae Expanded

11 October 2007

The boundary of the Martian feature Cerberus Fossae has been expanded to include nearby fossae. Please see the listing in the Gazetteer of Planetary Nomenclature for the new coordinates and size.

Twelve New Names Approved for Use on Titan

28 September 2007

The following 12 names have been approved by the IAU for surface features on Titan: Elivagar Flumina, Abaya Lacus, Bolsena Lacus, Feia Lacus, Koitere Lacus, Mackay Lacus, Mývatn Lacus, Neagh Lacus, Oneida Lacus, Sotonera Lacus, Sparrow Lacus, and Waikare Lacus. See the Titan section of the… Read More

Three New Saturnian Moon Names and Expansion of Theme

21 September 2007

The IAU has approved names for three more Saturnian moons. They are:Saturn L = S/2006 S 6 JarnsaxaSaturn LI = S/2006 S 4 GreipSaturn LII = S/2007 S 1 TarqeqThe theme for prograde satellites with an inclination of around 48 degrees has been expanded to include Inuit spirits. See the Planet and… Read More

Martian Patera Sizes Adjusted and New Mons and Tholus Names Introduced

19 September 2007

The descriptor term 'patera' is defined in the gazetteer as "an irregular crater, or a complex one with scalloped edges" (see Descriptor Terms). The sizes of seven Martian features (Alba, Apollinaris, Biblis, Hadriaca, Tyrrhena, Ulysses, and Uranius Paterae) have increased over time from the sizes… Read More

Three New Names Approved for Use on Europa

23 August 2007

The names Arran Chaos, Narberth Chaos, and Rathmore Chaos have been approved for use on Europa. See the page containing Europa nomenclature in the Gazetteer of Planetary Nomenclature for more information.

Two New Names Approved for use on Mars

25 July 2007

The name Olympia Rup─ôs has been approved for a series of scarps in the north polar region of Mars, and the name Jezero has been approved for a crater on the western edge of Isidis Planitia. See the Gazetteer of Planetary Nomenclature for more information.

Spelling of Saturnian Satellite Changed

12 July 2007

The spelling of the name of Saturn XLIV has been changed from Hyrokkin to Hyrrokkin, the original Norse spelling. For more information, see the page that describes planet and satellite names in the Gazetteer of Planetary Nomenclature.

Two New Patera Names for Io

3 July 2007

Two new patera names have been approved for use on Io: Prometheus Patera and Grian Patera. See the Gazetteer of Planetary Nomenclature for more information.