HiPOD: A Rippled Patch on the Plains

Here on the plains to the west of Juventae Chasma, we see a patch of inverted, or perhaps fluvial, channel forms with superposed or decaying-in-place bedforms that have been acted upon by the wind. This patch is surrounded by a more heavily cratered darker-toned terrain. Is the patch maybe just comprised of sedimentary materials?

https://uahirise.org/hipod/ESP_075183_1765
NASA/JPL-Caltech/UArizona

HiPOD: A Possible Glacial Formation in a Crater

This observation features an impact crater with a furrowed and pitted floor and a big, slump-like feature in its northern part. The crater floor is reminiscent of formations believed to be of glacial origin elsewhere on Mars, and our HiRISE image can provide clues to its nature. The terraced wall of the crater has blocky material reminiscent of craters on Ceres.

https://uahirise.org/hipod/ESP_075273_2145
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiIRSE 3D: A Lava-Coated Crater near Kasei Valles

This crater was coated by lava which then deflated, probably due to volatile loss. How much did it deflate?

https://www.uahirise.org/anaglyph/ESP_082265_1960_ESP_082555_1960_RED
NASA/JPL-Caltech/UArizona
#Mars #science #3D

HiPOD: About a Crater

This approximately 190-meter diameter circular depression appears to have an interesting interior shape in Context Camera data. This observation will assist in confirming that this is an impact crater and to determine what is causing the unusual interior appearance in the CTX data.

ID: ESP_075274_0945
date: 17 August 2022
altitude: 247 km

https://uahirise.org/hipod/ESP_075274_0945

HiPOD: Squiggles in Hellas Planitia

Here we see what appears to be long and straight “scratch marks” running down the southeast (bottom-right) facing dune slopes. If we look closer, we can see these scratch marks actually squiggle back and forth on their way down the dune. These scratch marks are linear gullies.

https://uahirise.org/hipod/ESP_051770_1345
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD: Hitch-Hiking with CTX

HiRISE often rides along with observations performed by the Context Camera (CTX) on the Mars Reconnaissance Orbiter. Sometimes, we will take a picture slightly before or after the CTX observation, in order to explore new terrain.

Here, this trick is used to steal a glimpse of a pair of beautiful box canyons in Noctis Labyrinthus that open to the east and reveal intriguing layering.

https://uahirise.org/hipod/ESP_082424_1730
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiRISE 3D: Exposure of Eroded Fan Deposits

Superb exposure of wind-eroded fan deposits: debris flow or fluvial? This anaglyph can help to determine if inverted channels are debris flow or fluvial.

https://www.uahirise.org/anaglyph/ESP_082858_1655_ESP_082647_1655_RED
NASA/JPL-Caltech/UArizona
#Mars

HiPOD: Spotted Dunes near Terra Cimmeria

Frost and sand are common occurrences on Mars. The bright carbon dioxide frost condenses out of the atmosphere during winter, marking a stark contrast with the dark sand dunes found here. This image reveals how the warming temperatures from the rising southern sun liberate the frost and expose the sand, initially in discrete spots. (Enhanced color image is less than 1 km across.)

https://uahirise.org/hipod/ESP_081492_1215
NASA/JPL-Caltech/UArizona
#Mars

HiPOD: Lavas and Grabens

How far do the lavas from Arsia Mons invade the grabens here in Noctis Labyrinthus? Why is the contact so sharp? What marginal characteristics are present in the lava flows, particularly the details of the crenulations or lack thereof?

ID: ESP_075264_1630
date: 16 August 2022
altitude: 251 km

https://uahirise.org/hipod/ESP_075264_1630
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiRISE 3D: Like a Wound – This observation did not have much by way of its science rationale, but it’s weird-looking enough to warrant a 3D look.

https://www.uahirise.org/anaglyph/ESP_082843_1515_ESP_081854_1515_RED
NASA/JPL-Caltech/UArizona
#Mars #science #3D

HiPOD: Slope Monitoring in Layered Rocks

This deposit of sedimentary rocks has excellent examples of recurring slope lineae (RSL). This proposed region of interest was last imaged after the 2006 dust storm and shows numerous large RSL all over the steep slopes. Once this excellent candidate RSL site is confirmed, additional images can be acquired on the neighboring candidate RSL site to the east.

https://uahirise.org/hipod/ESP_075259_1520
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD: A Layered Feature in a Crater in Nilosyrtis Mensae

The objective of this observation is to examine a layered feature in an impact crater. The layers may represent layers of mantle from when the climate changed and the shape may be due to the wind. The scene is also found in Context Camera data.

ID: ESP_075257_2155
date: 16 August 2022
altitude: 291 km

https://uahirise.org/hipod/ESP_075257_2155
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD: Layers in a Crater

The objective of this observation is to examine light and dark layers in an impact crater in Cydonia Mensae. Our interest is in seeing if the layer boundaries are diffuse as suggested in CTX image data. Most of the layers seem to have definite boundaries.

ID: ESP_075247_2125
date: 15 August 2022
altitude: 292 km

https://uahirise.org/hipod/ESP_075247_2125
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD: Textures of Amazonis

This observation was requested to look at some unusual surface textures in Amazonis Planitia. Some of the terrain grades into ridges that could possibly be invasive dikes or lava intruding into overlying ash. Despite the features in this image, Amazonis Planitia is one of the smoothest plains on Mars, and is located between the Tharsis and Elysium volcanic provinces, to the west of Olympus Mons.

https://uahirise.org/hipod/ESP_075239_1910
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiPOD: Slope and Gully Monitoring

Our science goal with this target is to monitor frost in active gullies in Moni Crater. Additionally, we want to observe lineae associated with sand dunes on the eastern rim of the crater and seen to be active in the Martian winter. Moni is an approximately 5-km diameter crater in the southern mid-latitude highlands of Noachis Terra, on the inner ring of the larger Kaiser Crater.

https://uahirise.org/hipod/ESP_075233_1325
NASA/JPL-Caltech/UArizona
#Mars #science #NASA

HiSlides for April 2024: https://www.uahirise.org/epo/hislides/

HiFlyers (11x17) for April 2024: https://www.uahirise.org/epo/hiflyers/

ICYMI: HiPODs for 22-26 April 2024

https://www.uahirise.org/updates/

HiRISE 3D: A Dark Spot, Revisited

Today’s HiPOD certainly warrants a look in 3D, as part of the rationale for the observation stated that stereo will be helpful for measuring the thickness of the banded terrain and layered material. (Give your eyes a few second to adjust with this one.)

https://www.uahirise.org/anaglyph/ESP_082221_1400_ESP_082366_1400_RED
NASA/JPL-Caltech/UArizona

HiPOD: A Great Dark Spot

This observation targets a pit partially filled with layered material and surrounded by banded terrain, as seen in Context Camera data . The relationship between the banded terrain and the layered material in the pit is unclear. HiRISE imaging may help to understand the contact between two. Stereo will be helpful for measuring the thickness of the banded terrain and layered material.

https://uahirise.org/hipod/ESP_082221_1400
NASA/JPL-Caltech/UArizona
#Mars #science #NASA