Valles Marineris (Mars)

Data as of 2026-10-23

What it is

Type
Vallis, valles
IAU definition

Valley

Diameter
3,761.3 km, 111 % of the radius of its body
Centre
14.01° S, 301.41° east (planetocentric latitude, east longitude from 0 to 360°, the IAU convention)
Name adopted
1973
Origin of the name

General name of the system of canyons honoring the scientific team of the Mariner 9 program.

Quoted in English, as the IAU publishes it.

In Galaxy

See it in Galaxy

Opens its body in the application, the camera turned towards Valles Marineris.

Observed by

Instruments whose footprint touches this formation, counted by the PDS Orbital Data Explorer (data frozen on September 29, 2026). A footprint that touches it is not a study of it.

Observed by
Mission and instrumentProductsFirstLast
Mars Global Surveyor · Mars Orbiter Laser Altimeter2,363September 15, 1997June 30, 2001
Mars Global Surveyor · Mars Orbiter Camera29,569September 19, 1997October 17, 2006
2001 Mars Odyssey Orbiter · Thermal Emission Imaging System249,771February 20, 2002November 30, 2025
ESA's Mars Express · High Resolution Stereo Camera6,194January 14, 2004February 23, 2026
ESA's Mars Express · Observatoire Mineralogie, Eau, Glaces, Activite5,660January 14, 2004January 11, 2024
ESA's Mars Express · Planetary Fourier Spectrometer7,751January 29, 2004December 30, 2018
ESA's Mars Express · Mars Advanced Radar for Subsurface and Ionsphere Sounding12,993June 29, 2005April 27, 2022
Mars Reconnaissance Orbiter · High-Resolution Imaging Science Experiment19,624March 24, 2006July 29, 2026
Mars Reconnaissance Orbiter · Context Camera13,411March 24, 2006May 31, 2026
Mars Reconnaissance Orbiter · Compact Reconnaissance Imaging Spectrometer for Mars228,748September 29, 2006May 7, 2022
Mars Reconnaissance Orbiter · Shallow Radar19,396January 7, 2007December 17, 2025
ExoMars Trace Gas Orbiter · Colour and Stereo Surface Imaging System23,173April 15, 2018December 20, 2024
Viking Orbiter 1 and 2 · Visual Imaging Subsystem Camera A/B5,955no date publishedno date published

Sources

International Astronomical Union Working Group for Planetary System Nomenclature, Gazetteer of Planetary Nomenclature, read on October 23, 2026. Feature page: https://planetarynames.wr.usgs.gov/Feature/6288

Type definitions: IAU Descriptor Terms, read on October 17, 2026. https://planetarynames.wr.usgs.gov/DescriptorTerms

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