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Mars

[Image of Mars]

Radius:
3388 km

Mass:
6.42x1023 kg

Orbital Period:
686.98 Earth days

Rotation Period:
1.026 Earth day

Distance from Sun:
227.94 million km

Satellites:
Phobos and Deimos

Mars is the fourth planet from the Sun. It has two moons, Phobos and Deimos.

Web Pages with Information about Mars

Astrogeology Research Program

Maps & Images
Browse the Solar System: Interactive version of our popular poster Mapping the Solar System
Browse the Geologic Solar System: Interactive version of our popular poster Geology of the Solar System
Planetary Maps: Searchable comprehensive listing of published planetary maps, with links to digital versions when available.
Maps and Globes Gallery: View and download digital maps and globes of Venus, the Moon, Mars, and Jovian satellites
Planetary Maps: Download our planetary maps and other publications from USGS Geopubs - Mars
Map-a-Planet: Interactive global image map browser
Mars Odyssey THEMIS Mosaics: Ongoing project to prepare for the creation of THEMIS global controlled mosaics. Download images, data, and access information about the project
MDIM 2.1: Mars Global Digital Image Mosaic - View and download the latest Mars Digital Image Model, a global image map designed to emphasize local topographic features
Martian Hemisphere Images: View and download stunning images of Mars surface
Valles Marineris: The Grand Canyon of Mars - 3D renderings, stereoscopic views, and GIS downloads of Candor and Ophir Chasmata
NASA Planetary Photojournal: Images from various Solar System exploration programs
Gazetteer of Planetary Nomenclature: Information about and access to the official International Astromical Union approved names for planetary features
Cartographic Coordinates and Rotational Elements of the Planets and Satellites - IAU Working Group: IAU CCRE Working Group, information, publications, and references, including tables of the accepted values for the size, shape, and rotations of the planets and satellites
Geomatics: Maps, topography, nomenclature, geodesy, photogrammetry, photoclinometry, and GIS
Geologic Mapping: Download digital geologic maps, learn about our geologic mapping efforts, and access geologic mapping resources from the Planetary Geologic Mapping Program
Geographic Information Systems (GIS) - GIS data, maps, tools, and discussion board on the PIGWAD Planetary Geographic Information Systems web site
Mars Global Surveyor Mars Orbiter Camera (MOC) Image Collection: download raw MOC data
Regional Planetary Information Facility (RPIF): Information about the resources in our Regional Planetary Information Facility

Mission Support
2003 Mars Exploration Rovers: Our involvement in the MER 2003 mission payload, scientific investigations, and image processing
MER 2003 Landing Site Mapping: Learn about Mars Exploration Rover landing site mapping mission support efforts
USGS Participation in the Mars Pathfinder Mission: Learn how our scientists and staff were involved in the Mars Pathfinder mission
Mars Global Surveyor Mars Orbiter Camera (MOC) Image Collection: download raw MOC data
Preliminary Views from the Mars Global Surveyor Mars Orbiter Camera (MOC): Groundwork for study and use of MOC images (historical document)

Research
Mars Ice: Searching for ice using Mars Global Surveyor Thermal Emission Spectrometer (TES) and Mars Odyssey Thermal Emission Imaging System (THEMIS)
Laboratory Spectroscopy of Dust Coatings and Shocked Minerals: Exploration of the laboratory thermal infrared and visible/near-infrared spectroscopy of palagonitic dust coatings on rock substrates and experimentally shocked pyroxene and Ca-rich plagioclase feldspar
Volcano/Ice Interaction Workshop: Studying the interaction of volcanos and ice on the Earth and throughout the Solar System
For images, maps, data, and information about Mars' moons, see the Phobos and Deimos sections.

Related: Missions

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