HiRISE 3D: Interesting Young Flow Features in Nereidum Montes

Our science goal is to understand the nature of a (geologically) young flow deposit at meter-scale resolution.

https://www.uahirise.org/anaglyph/ESP_041001_1430_ESP_029634_1430_RED
NASA/JPL-Caltech/UArizona
#Mars #science #3D

HiPOD 19 Oct 23: Sediments in Northeast Syrtis Major

This region is potentially where the Mars Sample Return lander could retrieve samples collected by Perseverance rover, if the rover travels this far outside of Jezero Crater. This enhanced color cutout covers ancient sediments with polygonal fracture patterns, perhaps an ancient lakebed.

https://uahirise.org/hipod/ESP_080611_1980
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

Mercury's eerie surface — covered with thousands of pitted and uneven hollows — remains a puzzling mystery for scientists.

With no atmosphere, wind or rain on the planet, no one knows how the peculiar depressions got there. More: https://science.nasa.gov/solar-system/mercurys-strange-hollows/

HiRISE 4K: A Little Group o’ Dunes

The science goal was to obtain an image, along with the Context Camera, for seasonal dune and frost deposition, evolution and sublimation.

Full cutout on Flickr: https://flic.kr/p/2pa1KYr

NASA/JPL-Caltech/UArizona
#Mars #science

HiRISE 3D: A Question of Thermokarst

Thermokarst is a type of terrain characterized by very irregular surfaces of marshy hollows and small hummocks formed as ice-rich permafrost thaws.

https://www.uahirise.org/anaglyph/ESP_040837_1405_ESP_032872_1405_RED
NASA/JPL-Caltech/UArizona

HiPOD 18 Oct 23: Late Summer on Northern Dunes

Northern dunes are made of dark basaltic sand, causing them to stand out against the rougher redder surface. No seasonal carbon dioxide ice remains other than the few bright cold spots where the ice (which may be water ice) has been protected.

https://uahirise.org/hipod/ESP_079927_2550
NASA/JPL-Caltech/UArizona
#Mars #science

HiRISE 3D: A Fresh 2-Kilometer Diameter Impact Crater

This nice crater, also visible in THEMIS and Context Camera data, looked like a good candidate for potentially active slopes (from erosion).

https://www.uahirise.org/anaglyph/ESP_041032_1455_ESP_033212_1455_RED
NASA/JPL-Caltech/UArizona

HiPOD 17 Oct 23: Crustal Blocks in the Walls of Coprates Chasma

The deep canyon walls of Valles Marineris might expose ancient crustal materials. Blocks of bedrock with diverse colors are visible in the enhanced-color cutout. These large, jumbled blocks might have resulted from heavy bombardment by asteroids about 3.9 billion years ago.

https://uahirise.org/hipod/ESP_080616_1640
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiRISE 3D: Unit Morphology in the Syrtis Major Region

This image can help us to look for stratigraphic relationships among three mineral bearing units detected with the CRISM instrument: carbonate, olivine, and serpentine.

https://www.uahirise.org/anaglyph/ESP_040970_1975_ESP_040904_1975_RED
NASA/JPL-Caltech/UArizona
#Mars #science

HiPOD 16 Oct 23: At the Edge

This observation shows us some details of the landscape at the edge of the South Polar layered deposits. When we acquired this image we noticed that spring activity seems to have arrived late here. Our science goal is to compare this image to earlier years for signs of new erosion.

https://uahirise.org/hipod/ESP_074353_0975
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HIPOD 13 Oct 23: A Crater in Gorgonum Chaos

One hypothesis proposes that the region of Eridania (where Gorgonum Chaos is located) to be volcanic in origin, and this conflicts with a previous interpretation that suggested this region to be an ancient inland sea. This HiRISE observation of the formations here (called “chaotic terrain”) can help to investigate the origin of this landscape.

https://uahirise.org/hipod/ESP_074396_1425
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD 12 Oct 23: Layers Upon Layers

Also visible in a Context Camera image, the objective of this observation is to examine part of a large field of layered terrain. In fact, much of this fairly large crater in northeast Meridiani Planum contains many layers, making for a stunning landscape.

https://uahirise.org/hipod/ESP_074350_1825
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD 11 Oct 23: Dune Monitoring in an Impact Crater

This very interesting image was requested to look for seasonal dune changes and to monitor frost deposition, evolution and sublimation. The Context Camera was also requested to ride-along to help with frost detection with its larger footprint. We can also look for detailed surface measurements.

https://uahirise.org/hipod/ESP_074339_2360
NASA/JPL-Caltech/UArizona
#Mars

HiPOD 10 Oct 23: Lava-Crater Interaction in Elysium Planitia

This observation truly shows the ravages of time: we see here an interaction of crater topography with ancient lava, which can be informative for analysis. This footprint is deliberately biased to the west because the lower eastern rim should be more interesting. The InSight mission landed in Elysium Planitia in 2018.

https://uahirise.org/hipod/ESP_074239_1860
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD 9 Oct 23: Unique Terrain near Memnonia Sulci

This observation features a unique, strange wavy terrain, also visible in Context Camera images, could be evidence of a combination of windblow n and fluvial processes. Memnonia Sulci is part of the Medusae Fossae Formation, a region of soft, easily eroded deposits that extends for nearly 5,000km (3,106 mi) along the equator of Mars between Olympus Mons and Apollinaris Mons.

https://uahirise.org/hipod/ESP_074238_1705
NASA/JPL-Caltech/UArizona
#Mars #science

HiRISE 3D: Contact between Light-Toned Deposits and Wallrock

This image is centered on the largest and best exposure of light-toned layered deposits that appear to drape wallrock materials.

https://www.uahirise.org/anaglyph/ESP_041068_1720_ESP_040435_1720_RED
NASA/JPL-Caltech/UArizona

HiPOD 5 Oct 23: Light-Toned Materials in an Impact Crater

The rationale for this observation was to get high resolution images to see more details about the light-toned deposits in an unnamed crater: could they be more sulfates or other hydrated materials? This scene is directly east of the large Aram Chaos impact crater.

https://uahirise.org/hipod/ESP_074232_1830
NASA/JPL-Caltech/UArizona
#Mars #science

HiRISE 3D: A Tyrrhena Terra Crater with Altered Minerals

Tyrrhena Terra is typical of the southern Martian landscape, with heavily cratered highlands and other rugged terrain.

https://www.uahirise.org/anaglyph/ESP_041009_1680_ESP_032477_1680_RED
NASA/JPL-Caltech/UArizona
#Mars

HiPOD: Steep Slopes in West Melas Chasma

Another image on the hunt for recurring slope lineae (RSL): there were excellent RSL candidates in a 2014 observation with much better examples than the RSL site located just to the northwest, so we want to monitor this one instead. We also want to take a closer look at the bedrock. Melas Chasma is the widest segment of the Valles Marineris canyon, and is an area where MRO has detected the presence of sulfates.

https://uahirise.org/hipod/ESP_074221_1680
NASA/UArizona

HiPOD 3 Oct 23: Slope Monitoring

The potential recurring slope lineae (RSL) we have viewed in this area are large and have high contrast. Most importantly we see multiple examples of RSL flowing on bedrock, alternating between bedrock and regolith and bedrock and regolith, and then regolith only. Do these candidate RSL fade? Do only the regolith RSL fade? Do they all lengthen?

https://uahirise.org/hipod/ESP_074089_1670
NASA/JPL-Caltech/UArizona