The Southern Floor of Gale Crater
This image along the southern interior floor of Gale Crater hosts many different landforms. Light-toned, scabby, and presumably hydrated materials on the crater floor are covered by large, darker-toned dunes.
The small crater, about 2 kilometers in diameter, in the middle of the image is filled with an enigmatic deposit that appears to have flowed into the crater from the south.
https://uahirise.org/hipod/ESP_043961_1740
NASA/JPL-Caltech/University of Arizona
#Mars #science
HiRISE 3D: A Region outside a Crater in Phlegra Montes
Phlegra Montes is a range of gently curving mountains and ridges on Mars. It extends from the northeastern portion of the Elysium volcanic province to the northern lowlands.
https://www.uahirise.org/anaglyph/ESP_083812_2170_ESP_066140_2170_RED
NASA/JPL-Caltech/University of Arizona
Topography of the Mars Pathfinder Landing Site
Here we have the first HiRISE-produced digital terrain model of the Mars Pathfinder landing site.
Terrain here is relatively flat with only approximately 300 meters of relief, mostly due the largest crater in the scene and the hills dubbed “Twin Peaks,” first imaged by Pathfinder.
ID: PSP_002391_1995
date: 29 January 2007
altitude: 284 km
More: https://uahirise.org/hipod/PSP_002391_1995
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
HiRISE 3D: Geological Contacts
Our goal is to explore the contact between the possible sulfates and chaos blocks within an older crater in eastern Iani Chaos.
Full image: https://www.uahirise.org/anaglyph/ESP_083766_1770_ESP_084056_1770_RED
NASA/JPL-Caltech/University of Arizona
Beautiful Blocks of Bedrock
This enhanced color image shows the wall of the crater, which exposes layering as well as blocks of rock. There is a distinctive large block in the upper left of the crater wall, generally referred to as a “mega-block.” Several smaller light-toned blocks are also in the crater wall, possibly of the same rock type as the “mega-block.”
HiRISE 3D: Terrain Sample in Aeolis Planum
The surface in this region has been heavily eroded by wind action.
Full image: https://www.uahirise.org/anaglyph/ESP_083892_1810_ESP_082969_1810_RED
NASA/JPL-Caltech/University of Arizona
Bedrock Exposures in Nirgal Vallis
This observation covers two tributaries and a main channel with light-toned bedrock throughout the scene. HiRISE provides a more detailed look at the stratigraphy. Nirgal Vallis is a long river channel about 610 kilometers long, and is named after Nergal, the Babylonian god of war and counterpart to the Roman god of war Mars.
ID: ESP_075156_1515
date: 8 August 2022
altitude: 255 km
https://uahirise.org/hipod/ESP_075156_1515
NASA/JPL-Caltech/University of Arizona
#Mars #NASA
HiRISE 3D: An Inverted Channel in Noachis Terra
This observation is part of a much wider network of inverted channels in Noachis.
Full image: https://www.uahirise.org/anaglyph/ESP_083646_1605_ESP_083936_1605_RED
NASA/JPL-Caltech/University of Arizona
@jurban Probabably a little of both. We've caught large dust clouds of avalanches "in the act" so it would not be impossible to interpret this as part of the lingering dust cloud.
Too hot outside and need something to do inside? Our August image catalog update awaits:
Ice Blocks Sliding Down Dunes
Russell Crater hosts a large dune field. In the spring, carbon dioxide ice on the gently sloping side of the dune sublimates (evaporates) first, leaving a warm sandy slope.
At the crest of the dune alcoves harbor ice longer, which then breaks off in large chunks and slides down, forming linear gullies. Sometimes the sliding ice block leaves a cloud of dust, as we see in this image.
https://uahirise.org/hipod/ESP_082249_1255
NASA/JPL-Caltech/University of Arizona
#Mars #science
HiRISE 3D: Crater Rim Deposits near Planned ExoMars Landing Site in Oxia Planum
This is part of our August image catalog update (dated 6 Aug). https://www.uahirise.org/anaglyph/
Spiders in Manhattan
After ice sublimates and erupts, thin debris falls to the surface of the ice in dark fan-shaped deposits, oriented by the wind blowing at the time of the eruption. The surface below the ice is eroded into channels known as araneiform terrain, colloquially called “spiders.”
https://uahirise.org/hipod/ESP_082142_0935
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
HiRISE 3D: Abrupt Transition in North Polar Stratigraphy
Well, now that’s a steep cliff. Collapse of material at some point?
https://www.uahirise.org/anaglyph/ESP_019215_2645_ESP_018898_2645_RED
NASA/JPL-Caltech/University of Arizona
Dunes in Northern Summer
This image was taken during the Martian northern summer, so there is no frost present on the dunes. The dunes closest to the base of the polar cap are long and parallel, indicating strong winds from the direction of the cap. As they get farther away from the polar cap, they start to form more crescent shaped dunes, called barchan dunes.
https://uahirise.org/hipod/PSP_009840_2745
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
HiRISE 3D: Flow Structures in a Noctis Region Trough
This observation shows probable impact melt and structures from nearby Oudemans Crater.
Full image: https://www.uahirise.org/anaglyph/ESP_020735_1720_ESP_020313_1720_RED
Inverted Terrain in Eridania
The Eridania Basin is thought to have once contained a large sea. This image shows the Gorgonum Basin, which lies along the eastern edge of Eridania.
The ridges and channels are interpreted to have formed by water flow, either along the surface (channels) or in the subsurface (ridges), providing clues to the water history of Eridania.
The Color Wonderland of Mawrth Vallis
Mawrth Vallis has some of the most spectacular color variations seen anywhere on Mars. This color variability is due to a range of hydrated minerals—water caused alteration of these ancient deposits—which is why this site is of interest to study the past habitability of Mars.
ID: ESP_045747_2030
date: 30 April 2016
altitude: 286 km
https://uahirise.org/hipod/ESP_045747_2030
NASA/JPL-Caltech/University of Arizona
A Triple Crater
This image shows an elongated depression from three merged craters.
The raised rims and ejecta indicate that these are impact craters rather than collapse or volcanic landforms. The pattern made by the ejecta and the craters suggest this was a highly oblique (low angle to the surface) impact, probably coming from the west.
https://uahirise.org/hipod/ESP_049987_1450
NASA/JPL-Caltech/University of Arizona
#Mars #science
HiRISE is a high resolution camera onboard the Mars Reconnaissance Orbiter (NASA). We take images of the surface of Mars. Based out of UArizona in Tucson.