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HiPOD: Yardangs in Arsinoes Chaos

The slightly curving, sublinear bright terrain is composed of yardangs. Yardangs are portions of rock that have been sand blasted into long, skinny ridges by saltating (or bouncing) sand particles blowing in the wind.

More: uahirise.org/hipod/ESP_039563_

NASA/JPL-Caltech/UArizona

HiPOD: A Polar Smile

This image represents one of many monitoring sites at the South Pole residual cap (SPRC). Images are taken throughout the Martian year to document changes in carbon dioxide ice coverage.

This image shows a popular spot where one of the features resembles a smiley face that is approximately 500 meters across. If you smile at Mars, sometimes it smiles back.

uahirise.org/hipod/ESP_039115_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Crater Ejecta Crosscut by Channels in Aeolis Dorsa

One of our goals is to seek confirmation of multiple episodes of flow: are the channels filled by fluvial materials, debris flows, or something else?

Full image: uahirise.org/anaglyph/ESP_0804

NASA/JPL-Caltech/UArizona

HiPOD: Valleys in Deltoton Sinus

The objective of this observation is to examine valleys on the wall of an old crater. These valleys are wide, and then they get narrow and become very steep. There may have been waterfalls here. The scene can be found in Context Camera data. The name means “bay of the triangle” and its location makes triangle with Iapygia and Oenotria.

uahirise.org/hipod/ESP_074704_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Ridges on the Floor of Shalbatana Vallis

These curved ridges are real, and they’re spectacular!

uahirise.org/anaglyph/ESP_0802
NASA/JPL-Caltech/UArizona

HiPOD: In an Unnamed Crater

Also available in Context Camera data, we acquired this observation to examine gullies in a small, southern mid-latitude crater. Images like this one will help us increase our inventory of Martian gullies. This scene is located in Terra Sirenum, in the Southern Hemisphere of Mars.

uahirise.org/hipod/ESP_074698_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Layered Late-Stage Fan in Gale Crater

Our rationale is to search for boulders for comparison to Gediz Vallis ridge currently adjacent to the Curiosity rover.

Full image: uahirise.org/anaglyph/ESP_0801

NASA/JPL-Caltech/UArizona

HiPOD: This is Not Hadrian’s Wall

This observation shows us a spectacular long-running ridge located to the north of Vernal Crater. These ridges may be large, mineralized fracture zones. This image was requested to investigate further and take a look at the structure within the ridge, especially with a digital terrain model to help. (Black and white cutout is less than 5 km across; enhanced color is less than 1 km across.)

uahirise.org/hipod/ESP_074693_
NASA/JPL-Caltech/UArizona

HiRISE 3D: At the North Pole

This observation was requested to re-image for potentially active tectonic activity that we can compare to a previous image in 2008.

uahirise.org/anaglyph/ESP_0545
NASA/JPL-Caltech/UArizona

HiPOD: Layers in a Low Latitude Crater

The objective of this observation is to examine thin layers in a small crater on the floor of a larger crater. These thin, regular layers may be evidence that a lake once sat in the larger crater. This is scene is also visible in a Context Camera image.

uahirise.org/hipod/ESP_074692_
NASA/JPL-Caltech/UArizona

HiRISE 3D: Mounds in Oxia Colles

This landform shows distinctive layering in CTX, and is similar to other buttes to the far north east which have been observed to have Mawrth-like stratigraphy.

Full image: uahirise.org/anaglyph/ESP_0771
NASA/JPL-Caltech/UArizona

HiPOD: An Inverted Channel West of Idaeus Fossae

This observation shows a multithreaded, inverted fluvial channel located to the west of Idaeus Fossae. The formation may date back to the mid-Noachian epoch, billions of years ago. There is also evidence for lateral channel migration and is possibly associated with fan deposits in an impact crater to the east.

uahirise.org/hipod/ESP_074497_
NASA/JPL-Caltech/UArizona

HiRISE 3D: A Southern Canyon Wall in East Coprates Chasma

The walls here potentially expose pristine crustal material. This is an area of interest that could be accessed and is within a potential future rotorcraft mission traverse.

Full image: uahirise.org/anaglyph/ESP_0782
NASA/JPL-Caltech/UArizona

HiPOD: Fluvial Landforms in Granicus Valles

In this image, large, streamlined features and grooves have been carved by enormous water volumes into the floor of Granicus and point to the direction of flow towards the northwest. The floods of Granicus Valles are thought to have formed later in Mars history during the Amazonian epoch, several billion years ago.

uahirise.org/ESP_080319_2105
NASA/JPL-Caltech/UArizona

HiRISE 3D: He’s Baaaaack!

Yes, it’s the (in)famous formation first imaged in low-resolution by the Viking probe back in 1976. We’ve imaged it before, but now you can view it in 3D glory!

uahirise.org/anaglyph/ESP_0805
NASA/JPL-Caltech/UArizona

HiPOD: Curving Ridges in Aeolis Planum

Multiple processes, which may have occurred billions of years apart, are reflected in this HiRISE image of Aeolis Planum.

Cutting across the scene are curvilinear ridges. These likely represent ancient, meandering river channels that flowed across the surface and buried themselves over time. The channels have subsequently been exposed to the surface by the wind, forming the cross-cutting ridges.

uahirise.org/ESP_079382_1735
NASA/JPL-Caltech/UArizona

How Tiny Red Stars Can Test Ideas about the Origin of Life

Ultracool dwarf stars lack the UV light thought to be needed to kick-start life

sciencenews.org/article/dwarf-

HiRISE 3D: Streamlined Features in Athabasca Valles

The rationale for this observation was elegantly simple: to extend coverage of spectacular landscape.

Full image: uahirise.org/anaglyph/ESP_0805

NASA/JPL-Caltech/UArizona

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HiRISE (NASA)

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