From the USGS Astrogeology Science Center:
The Working Group for Planetary System Nomenclature has approved new names for ten rupēs on Mercury: Alvin Rupes, Belgica Rupes, Calypso Rupes, Carnegie Rupes, Duyfken Rupes, Eltanin Rupes, Enterprise Rupes, Nautilus Rupes, Palmer Rupes, and Terror Rupes. For more information, see the Gazetteer of Planetary Nomenclature.
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