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HiPOD 21 Feb 23: Monitoring the Zhurong Rover

The Chinese Zhurong rover has been on Mars since 14 May 2021, and MRO/HiRISE has imaged it several times to track its progress and monitor the surface for changes.

More: uahirise.org/hipod/ESP_077511_

NASA/JPL-Caltech/UArizona

HiRISE 3D: Gullies with Extensive Debris Aprons

These gullies in Terra Sirenum have very extensive and detailed debris aprons. A 3D image is useful in distinguishing repeated deposition events.

NASA/JPL-Caltech/UArizona

HiPOD 20 Feb 23: Small Gullies in Candor Chasma

In addition to the stunning, light-toned layers at the base of this escarpment in Candor Chasma, we’re interested in the small gullies we also see at this location. Our science goal is to determine if the gullies have changed since an initial image we acquired in 2006.

uahirise.org/hipod/ESP_071900_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Gullies on a Crater Wall in Simud Valles

Our goal is to get better details of some of the gullies we find here.

NASA/JPL-Caltech-Arizona

HiPOD 17 Feb 2023: Dazzled by Danielson

Danielson Crater is about 67 kilometers in diameter, located in the southwest Arabia Terra region of Mars. The rock here was formed millions or billions of years ago when loose sediments settled into the crater, one layer at a time, and were later cemented in place. Cyclical variations in the sediment properties made some layers more resistant to erosion than others.

uahirise.org/hipod/ESP_071634_
NASA/JPL-Caltech/UArizona

HiPOD 16 Feb 2023: Layering in Far Eastern Candor Chasma

Context Camera images suggest that sedimentary layers here are organized into bundles of quasi-periodic beds. This is important if true because it is diagnostic of what is called “orbital forcing.” It’s worth testing to see if orbital forcing of sedimentation also occurred in Valles Marineris.

uahirise.org/hipod/ESP_070344_
NASA/JPL-Caltech/UArizona

HiPOD 15 Feb 2023: Possible Inverted Channels

Context Camera data shows possible inverted channels at this location. This fan is very old by comparison to the feature to the northeast of the same massif. What is the change in fan texture between the two fan-forming episodes?

uahirise.org/hipod/ESP_073204_
NASA/JPL-Caltech/UArizona

HiPOD 14 Feb 23: Sinuous Channels near Zephyria Planum

A Context Camera image shows fine-scale sinuous channel deposits here, but lacks the resolution to measure their width precisely. Channel-deposit width is more easily modified by erosion than meander wavelength, but channel-deposit width measurements are possible at many more sites than are meander wavelength measurements.

uahirise.org/hipod/ESP_071048_
NASA/JPL-Caltech/UArizona

HiPOD 13 Feb 23: Channels near Reull Vallis

The objective of this observation is to examine several small channels that seem to be entering a low area. This may be evidence that the ground was quite water-rich. Reull Vallis starts in Promethei Terra and empties into Hellas Planitia and is 1,051 kilometers (653 miles) long. Reull is the Gaelic word for “planet.”

uahirise.org/hipod/ESP_076245_
NASA/JPL-Caltech/UArizona

HiPOD 11 Feb 23: A Fresh Shallow Valley Transitions to an Inverted Channel

This image shows a portion of a long valley system in northern Arabia Terra. The valley must be relatively young because it cuts through the ejecta of an impact crater that still retains it entire ejecta blanket, indicating the crater is also fairly young and fresh.

More: uahirise.org/hipod/ESP_041144_

NASA/JPL-Caltech/UArizona

HiRISE 3D: The Floor of Noctis Labyrinthus

Well, part of it, anyway. You could get lost here, and not just at night.

NASA/JPL-Caltech/UArizona

HiPOD 10 Feb 23: A Light Toned Deposit in Aureum Chaos

The objective of this observation is to examine a light-toned deposit in a region of chaotic terrain. There is the trace of layers in the image. Some shapes on the top suggest erosion by a fluid moving North and South. The top of the light-toned deposit appears rough, in contrast to the smoothness of its surroundings.

uahirise.org/hipod/ESP_075907_
NASA/JPL-Caltech/UArizona

HiRISE 3D: A Crater Floor in Sinai Dorsa

Most late-stage lake deposits are low elevation. Is this candidate lake deposit in crater high on Tharsis an exception?

NASA/JPL-Caltech/UArizona

HiPOD 9 Feb 23: Features in a Small Crater in Aonia Terra

The objective of this observation is to examine features within an impact crater. Part of the crater contains a dense group of dark dunes. Some of the walls contain gullies, and there are ridges on the floor. HiRISE resolution can help us to see if both the walls and the dunes contain gullies.

ID: ESP_075935_1300
date: 8 October 2022
altitude: 251 km

uahirise.org/hipod/ESP_075935_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Downwind Hellespontus Regional Barchan Dunes

Our goal is to look for and measure seasonal change due to aeolian processes since earlier image. High flux dunes upwind, but how do they compare downwind?

NASA/JPL-Caltech/UArizona

HiPOD 8 Feb 23: Ridges and Troughs in Northwest Arena Colles

The objective of this observation is to determine the nature of ridges and troughs along a crater wall in northwest Arena Colles. A Context Camera image shows a few pits along the troughs, so water may have been trapped in the ground. HiRISE may be able to see many more pits and evidence of pits.

uahirise.org/hipod/ESP_075982_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Graben Southeast of Melas Chasma

In this image, we see a North-South trending graben, crosscut by two East-West trending graben. HiRISE imaging provides deeper insight into the regional structural geology of the Valles Marineris region.

NASA/JPL-Caltech/UArizona

HiPOD 7 Feb 23: Cones in Galaxias Fossae

The objective of this observation is to examine a group of cones that are in a shallow valley. Some have suggested that these features are mud volcanoes. These are in locations where watery sediments seep onto the surface. Because of Mars’ low temperatures and pressures, the mud quickly freezes.

uahirise.org/hipod/ESP_075584_
NASA/JPL-Caltech/UArizona

HiPOD 6 Feb 23: Channels in Nereidum Montes

The objective of this observation is to examine channels at the top of an old crater. Here it seems that a channel runs along the outside of the rim and a short distance away, channels begin inside the crater. Pictures like this may help us understand the overall drainage in this region.

uahirise.org/hipod/ESP_076132_
NASA/JPL-Caltech/UArizona

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HiRISE (NASA)

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