[NASA/JPL-Caltech/UArizona]. Polygons are interesting features on Mars, though sometimes only visible in high resolution images like those taken by HiRISE.
HiRISE
Posted inMars
Sulfate Deposits On Iani Chaos On Mars
[NASA/JPL-Caltech/UArizona] This HiRISE image shows light-toned layered deposits within Iani Chaos. Many of the same deposits occur within the depressions of Iani Chaos, as well as several nearby similar regions […]
Posted inMars
A Mars Impact Crater Surrounded By Chunks Of Water Ice
[NASA] Boulder-size blocks of water ice can be seen around the rim of this giant meteoroid impact crater on Mars, as viewed by the High-Resolution Imaging Science Experiment (HiRISE camera) […]
Posted inMars
Cliffs Of Ice On Mars
[NASA/UA HiRISE] The mid-latitudes of Mars are mostly covered with smooth material that scientists have suspected to be ice for some time. The ground is uniform and dusty and does […]
Posted inMars
Perseverance Rover Provides A Record of Ancient Mars Impacts
[NASA] Old rocks exposed on the rim of Jezero Crater preserve a roughly 4-billion-year-old cosmic “weather report” from the solar system’s most dynamic era.
Posted inMars
Frosty Dunes Of An Impact Crater On Mars
[NASA] This observation is one of three images requested from HiRISE at this location to monitor frost deposition, evolution and sublimation.
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Perseverance Astrobiology Droid Has Completed A Martian Marathon
[NASA] On June 14, 2026, Mars Perseverance rover completed a Martian “marathon” by surpassing 26.2 miles (42.195 kilometers) of travel. The day before, NASA’s Mars Reconnaissance Orbiter snapped this view […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Desert Worlds, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report
Mesas Of Layered Sedimentary Rocks In Valles Marineris
Valles Marineris, like the Grand Canyon in northern Arizona, provides a spectacular look at the geologic history via layered sediments that get older with depth.
Posted inAstrogeology, Desert Worlds, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report
River Delta Deposits In Aeolis Dorsa On Mars
Branching deposits in this area have been shown to be consistent with river deltas. Measurements of channel-belt width and thicknesses of river deltas on Earth point to relationships between width, […]
Posted inArctic / Antarctic / Alpine, Caves, Craters, Mountains, Subsurface, Lava Tubes, Desert Worlds, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report
HiRISE Image: Carbon Dioxide Ice On Mars
Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars. At its greatest extent in mid-winter, this frost reaches from the poles down to […]