TagsAeolis Mons Arizona State University ASU atmosphere Beautiful Mars Cape Tribulation clouds craters Curiosity dunes dust Endeavour Crater ESA European Space Agency Gale Crater High Resolution Imaging Science Experiment HiRISE Malin Space Science Systems Marathon Valley MARCI Mars Color Imager Mars Exploration Rover Mars Odyssey Mars Reconnaissance Orbiter Mars Science Laboratory mass wasting MER Mount Sharp MRO MSL MSSS Murray Formation NASA Opportunity sand dunes Stimson Formation storms THEMIS THEMIS Image of the Day Thermal Emission Imaging System University of Arizona Vera Rubin Ridge volcanics weather wind
- CRISM: Compact Reconnaissance Imaging Spectrometer for Mars
- CTX: Context Camera
- HiRISE: High Resolution Imaging Science Experiment
- MARSIS: Mars Advanced Radar for Subsurface and Ionosphere Sounding
- SHARAD: Shallow Radar
- THEMIS: Thermal Emission Imaging System
- All Mars missions list
- Curiosity rover
- Hope (al-Amal) orbiter
- Mars Atmosphere and Volatile Evolution Mission (MAVEN)
- Mars Exploration Rovers (MER)
- Mars Express (MEX)
- Mars Odyssey
- Mars Orbiter Mission (MOM) / Mangalyaan
- Mars Reconnaissance Orbiter (MRO)
- Mars Science Laboratory (MSL)
- Perseverance Rover
- Tianwen-1 orbiter/rover
Tag Archives: CO2 frost
Sand dunes cover much of this terrain, which has large boulders lying on flat areas between the dunes. It is now late winter here in the Southern hemisphere, and these dunes are just getting enough sunlight to start defrosting their … Continue reading
This enhanced color HiRISE image shows several craters somewhere in the southern mid-latitudes of Mars. It is currently mid-winter in the Southern hemisphere, so we can observe accumulating frost (neon blues) on pole-facing slopes (i.e. south-facing) and in shadowed areas. … Continue reading
Unleash the Polygons! Beautiful Mars series.
Strange patterned ground and circular spots in dark area. This formation is right under the rim of an impact crater. There is a possibility of frost at this latitude, but doesn’t look like it is recent. Beautiful Mars series.
Frost on dunes, topped by dust devil streaks. Beautiful Mars series.
The frosty shoreline. The frost is carbon dioxide, and the dark material is the result of sublimation, when a solid transforms directly to a gas, exposed now on lighter ground. Beautiful Mars series.
Why does HiRISE take so many repeat images of the same area? Repeat coverage actually serves a special purpose, such as detecting seasonal changes (frost deposition and sublimation) and temporal changes (dust devil tracks and avalanches.) These repeat images also … Continue reading
We’re watching you, defrosting icy crater. Beautiful Mars series.
This HiRISE image, approximately 1.5 by 3 kilometers, shows frosted gullies on a south-facing slope within a crater. At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only … Continue reading