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Sub-ice Volcanism on Earth and Marshttp://astrogeology.usgs.gov/geology/mars-volcano-ice-interactions
Sub-glacially erupted volcanoes form free-standing flat-topped mesas, known as tuyas. Although there are some silicic edifices (e.g. Tuffen et al., 2002), most terrestrial sub-ice volcanoes are mafic…
1961: USGS Astrogeology's First Published Maphttp://astrogeology.usgs.gov/rpif/exhibits/astros-first-lunar-map
The race to the moon began on August 17, 1958, and the Soviet Union won. This isn't the opening line of an alternate history story; rather, it is an acknowledgment that more than one moon race…
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Apollo Grover Historical Photo: B1image/jpeg 14 MB
James Irwin (left) and David Scott (right) drive Grover.
Apollo Grover Historical Photo: B2image/jpeg 12 MB
James Irwin (left with checklist) and David Scott (right) drive Grover; closeup of seating area and camera.
Apollo Grover Historical Photo: B3image/jpeg 12 MB
James Irwin with chest-mounted camera and David Scott (not visible) drive Grover.
Mars Mini Globesapplication/pdf 2 MB
Project sheet with instructions for creating the Viking and Global Surveyor Mars globes using tennis balls.
Comparison between Elysium Fossae Ridges and Terrestrial Sub-ice Volcanoesapplication/pdf 864 kB
Documents4 Results Collapse
Lorenz et al. 2013 Titan Topographic Map of Titanapplication/pdf 7 MB
Cassini RADAR SARtopo and altimetry data are used to construct a global gridded 1 x 1° elevation map, for use in Global Circulation Models, hydrological models and correlative studies. The data are…
ISPRS 2004 Geomorphometric Mapping of Grand Canyon from the 1-Degree USGS DEMsapplication/pdf 946 kB
In a previous research effort a terrain partition framework was defined allowing the partition of the landscape of Valles Marineris chasma (an elongated steep-sided depression located in Mars) to…
ISPRS 2003 Utilizing GIS in Martian Impact Crater Studiesapplication/pdf 545 kB
The Mars Crater Morphology Consortium was formed in 1997 to facilitate exchange of martian impact crater data among researchers through standardizing nomenclature, integrating crater databases into…
Zebker et al. Size and Shape of Saturn's Moon Titanapplication/pdf 1 MB
Cassini observations show that Saturn’s moon Titan is slightly oblate. A fourth-order spherical harmonic expansion yields north polar, south polar, and mean equatorial radii of 2574.32 T 0.05…
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New Name for a Lacus on TitanNomenclature News: 24 May 2013
The IAU Working Group for Planetary System Nomenclature has approved the name Ladoga Lacus for a lacus on Titan. For more information, see the image of the north pole region of Titan in the…
Seven Lacuna Names Approved for Use on TitanNomenclature News: 21 December 2010
Seven names with the descriptor term lacuna have been approved for use on Titan. For more information, see the list of Titan lacunae and the map of the north polar region of Titan in the Gazetteer of…
Three New Lacus Names Approved on TitanNomenclature News: 7 April 2011
Three new lacus names (Cardiel Lacus, Freeman Lacus, and Towada Lacus) have been approved for use on Titan. For more information, see the Titan page and the map of the north polar region of Titan in…