-
Recent Posts
Tags
Aeolis 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 windArchives
Links
general
mission instruments
- 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
missions
- All Mars missions list
- Curiosity rover
- ExoMars
- Hope (al-Amal) orbiter
- InSight
- 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
news
Tag Archives: crustal dichotomy
THEMIS: Hills of Arena Colles
THEMIS Image of the Day, July 15, 2019. Today’s VIS image shows part of Arena Colles. The term colles means hills. Arena Colles is located on the margin where Terra Sabaea steps down in elevation into Utopia Planitia. Explore more … Continue reading
Posted in Reports
Tagged Arena Colles, Arizona State University, ASU, crustal dichotomy, hills, Mars Odyssey, NASA, Terra Sabaea, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Utopia Planitia
Comments Off
THEMIS: Rough ground in Nilosyrtis
THEMIS Image of the Day, June 11, 2019. Today’s VIS image is located on the margin of the Terra Sabaea highlands and the Nilosyrtis Mensae lowlands. The drop off is very steep – about 18,000 ft. This “edge” circles the … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, crustal dichotomy, glacial deposits, Mars Odyssey, NASA, Nilosyrtis Mensae, periglacial processes, rock glaciers, Terra Sabaea, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System
Comments Off
HiRISE: Dipping layers
Dipping layers. These aren’t dipping dots. The objective of this observation is to examine several sets of dipping layers in a depression in Ismeniae Fossae, which straddles the southern highlands/northern lowlands of Mars. HiRISE Picture of the Day archive. [More … Continue reading
Posted in Reports
Tagged crustal dichotomy, High Resolution Imaging Science Experiment, HiPOD, HiRISE, HiRISE Picture of the Day, Ismeniae Fossae, layers, Mars Reconnaissance Orbiter, MRO, NASA, sedimentary basins, sedimentary deposits, University of Arizona
Comments Off
CRISM: Hydrated minerals of Cydonia Colles
In this scene we observe the knobs within the northern lowlands (Acidalia Planitia) that are Fe/Mg phyllosilicate-bearing (pink-blue) and small, patchy exposures of hydrated silica (green) surrounding the knobs. Previously, phyllosilicates have only been found within impact craters in the … Continue reading
Posted in Reports
Tagged Acidalia Planitia, clay minerals, Compact Reconnaissance Imaging Spectrometer for Mars, CRISM, crustal dichotomy, Cydonia Colles, hydrated silica, iron-magnesium phyllosilicates, Mars Reconnaissance Orbiter, MRO, NASA, northern lowlands, northern plains, phyllosilicates, plains, Southern Highlands
Comments Off
HiRISE: Inverted channels
Inverted channels at the boundary of highlands and intercrater plains. This image targets inverted channels located at the boundary between Noachian highlands and Noachian intercrater plains bedrock. These channels are 200 to 500 meters wide, implying substantial fluvial activity. High-resolution … Continue reading
Posted in Reports
Tagged Beautiful Mars, crustal dichotomy, High Resolution Imaging Science Experiment, HiRISE, inverted channels, inverted topography, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
Comments Off
Crustal dichotomy: First a giant impact, then a superplume at the antipode
The result of collaboration between researchers at UC Berkeley, USA and the Institute of Earth Sciences, Taiwan, suggests a two-stage process to explain the martian crustal dichotomy. The dichotomy is a 5-km elevation difference between the northern and southern hemispheres … Continue reading
Posted in Reports
Tagged Borealis basin, crustal dichotomy, crustal thickness, giant impacts, mantle dynamics, northern lowlands, northern plains, plume
Comments Off
HRSC: Mars impact crater or supervolcano?
These images from [the High Resolution Stereo Camera on] ESA’s Mars Express show a crater named Ismenia Patera on the Red Planet. Its origin remains uncertain: did a meteorite smash into the surface or could it be the remnants of … Continue reading
Posted in Reports
Tagged Arabia Terra, crustal dichotomy, DLR, ESA, European Space Agency, FU Berlin, giant impacts, High Resolution Stereo Camera, HRSC, Ismenia Patera, Mars Express, MEX, volcanics
Comments Off
Mars’ oceans formed early, with a possible assist from volcanism
A new scenario seeking to explain how Mars’ putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million years earlier and were not as deep as once thought. The proposal [published … Continue reading
Posted in Reports
Tagged crustal dichotomy, oceans, polar ocean, Tharsis, volcanic activity
Comments Off
New gravity map suggests Mars crust is porous
NASA scientists have found evidence that Mars’ crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet’s interior structure and evolution. A lower density likely means that at least part of … Continue reading
Posted in Reports
Tagged crustal composition, crustal density, crustal dichotomy, crustal thickness, gravity map
Comments Off
Did a giant impact create the northern lowlands, both moons, and enrich the mantle?
The origin and nature of Mars are mysterious. The planet has geologically distinct hemispheres with smooth lowlands in the north and cratered, high-elevation terrain in the south. The red planet also has two small oddly-shaped oblong moons and a composition that sets … Continue reading
Posted in Reports
Tagged crustal dichotomy, Deimos, northern lowlands, northern plains, Phobos
Comments Off