TagsAeolis Mons Arizona State University ASU atmosphere Beautiful Mars Cape Tribulation channels craters Curiosity dunes dust Endeavour Crater ESA 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 Naukluft Plateau Opportunity Pahrump Hills sand dunes Stimson Formation storms THEMIS Themis Image of the Day Thermal Emission Imaging System University of Arizona 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
- Mars 2020 Rover
- 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)
Tag Archives: barchan dunes
Barchan dune changes in the Hellespontus region. Beautiful Mars series.
This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty … Continue reading
The large dark feature is a classic Martian sand dune. Most sand on Earth is made from the mineral quartz, which is white and bright. On Mars, most sand is composed of dark basalt, a volcanic rock. For this reason, … Continue reading
Consider the barchan dune. Beautiful Mars series.
Barchan dunes in the Dulovo Crater region. Beautiful Mars series.
These dark dunes are influenced by local topography. The shape and orientation of dunes can usually tell us about wind direction, but in this image, the dune-forms are very complex, so it’s difficult to know the wind direction. However, a … Continue reading
Mars’ permanent North Polar cap is ringed by sand dunes. In the winter and spring the dunes are covered by a seasonal cap of dry ice. Here, we see the dark dunes in the summer, bare of seasonal frost. Two … Continue reading
Dark dunes superimposed on light bedforms — some dunes just like to be in the spotlight. Beautiful Mars series.
As of this date, MRO has been orbiting Mars for nine years. One benefit of MRO’s nearly three completed extended missions is the chance to see landscapes change over time. These barchan sand dunes are a case in point: these … Continue reading
Barchan dune wonderland — The dark spots are the result of sublimation. Beautiful Mars series.