HiRISE BeautifulMars (NASA)

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Images from the High Resolution Imaging Science Experiment (HiRISE) on board the Mars Reconnaissance Orbiter (NASA). We are based out the University of Arizona in Tucson, AZ.

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HiPOD: It Shrinks! It Cracks! Here, we have a crater that lies close to Elysium, a major volcanic system on Mars. The whole region surrounding the crater was at some point covered by lava from the volcano creating vast lava plains. uahirise.org/hipod/ESP_04... NASA/JPL-Caltech/UArizona #Mars #NASA

HiPOD: Dune Transition in the High Southern Latitudes This image shows a moderate sized dune field that displays most of these morphologic features and a noticeable absence of dune crests. More: uahirise.org/hipod/ESP_04... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiRISE 8K: The Floor of Kasei Valles This HiRISE image shows a wonderfully complex surface on the floor of this ancient flood-carved canyon. Full cutout: flic.kr/p/2q3Kpyf NASA/JPL-Caltech/UArizona #Mars #science #geology

HiRISE 3D: Gullied Slope Monitoring These impressive gullies are worth not only having stereo images, but also tracking changes over time. Full image: www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona #Mars #science

HiPOD: A South Polar Pit or an Impact Crater? We see many shallow pits in the bright residual cap of carbon dioxide ice (also called “Swiss cheese terrain”). There is also a deeper, circular formation that penetrates through the ice and dust. uahirise.org/hipod/ESP_04... NASA/JPL-Caltech/UArizona

HiRISE 4K: Holden Crater Megabreccia This HiRISE image covers the southwest portion of the terraces and floor of Holden Crater situated in southwest Margaritifer Terra. Full cutout: flic.kr/p/2q3woMn NASA/JPL-Caltech/UArizona

HiRISE 3D: Channels in Tyrrhena Terra The objective of this observation is to examine channels that appear to end at the same level. Maybe they were emptying into a lake. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona #Mars #science #3D

HiPOD: A Woodpecker on Mars? This image reveals some bright materials on a crater floor, part of which forms an outline similar to a woodpecker. This bright material appears to have collected in relative topographic low areas. uahirise.org/hipod/ESP_08... NASA/JPL-Caltech/UArizona #Mars #science

HiPOD: An Ancient Valley Network A full-resolution enhanced color closeup reveals details in the bedrock and dunes on the valley floor. The bedrock of ancient Mars has been hardened and cemented by groundwater. uahirise.org/hipod/ESP_04... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiRISE 3D: Craters in Ejecta in Northern Mid-Latitudes The objective of this observation is to determine the nature of a crater in ejecta that shows rings or layers. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona #Mars #3D

HiPOD: Dune Ripples in Her Desher Vallis These small ripples, about 10 meters apart, are located in Her Desher Vallis. Her Desher is a small channel that shows evidence of phyllosilicates—silicates with a sheet-like structure, such as clay minerals. uahirise.org/hipod/ESP_02... NASA/JPL/UArizona

HiPOD: North Polar Layers: Streaking and Unconformity In geology, an unconformity is a buried erosion surface, where the bedding layers don’t match. It doesn’t mean a mismatch in attitudes and beliefs, with rebellious behavior like streaking. uahirise.org/hipod/ESP_01... NASA/JPL-Caltech/UArizona

HiPOD: The White Cliffs of Rover This image reminds us of the rugged and open terrain of a stark shore-line. A close-up in enhanced color produces a striking effect, giving the impression of a cloud-covered cliff edge with foamy waves crashing against it. uahirise.org/hipod/ESP_05... #Mars

HiRISE 3D: Mesa Stratigraphy at Terby Crater The 2-3 km sequence of stratigraphy exposed across the three mesas in the northeastern portion of Terby Crater likely capture a diverse range of sedimentary rock types. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona

HiPOD: A Volcanic Fissure This fissure, less than 500 meters across at its widest point, lies in the Tharsis region and is believed to be a vent from which lava flowed in ancient eruptions. uahirise.org/hipod/ESP_01... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiPOD: Once in a Blue Dune This particular dune, appearing like turquoise blue in enhanced color*, is made of finer material and/or has a different composition than the surroundings. uahirise.org/hipod/ESP_05... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiRISE 3D: Channels and Fan in a Crater in the Aeolis Region The goal is understanding the local fan stratigraphy. There are at least three fans in this crater, but when did they form relative to each other? Full image: www.uahirise.org/anaglyph/ESP... #Mars #science

HiPOD: Decoding a Geological Message A close up image of a recent 150-meter diameter impact crater near Amazonis Mensa and Medusae Fossae is another great example of geologic complexity of Mars. The spider web-like texture of this crater is intriguing. uahirise.org/hipod/ESP_04... #Mars

HiPOD: The “Specters” of Mars The jagged saw-tooth dichotomy, over a grainy texture, seen in this close-up image, reminds us of a scene from an old silent horror movie. Stark and unnerving...was that something moving you saw through the canvas of your tent? uahirise.org/hipod/ESP_05... #Mars

HiPOD: Dragon Scales of Mars This intriguing surface texture is the result of rock interacting with water. The almost dragon-like scaled texture represents Martian bedrock that has specifically altered into a clay-bearing rock. uahirise.org/hipod/ESP_05... NASA/JPL-Caltech/UArizona #Mars #science

HiPOD: Gullies and Craters and Dunes, Oh My! Our image shows regions of geologic diversity within, making this an interesting spot for scientists to study how different Martian processes interact with each other. uahirise.org/hipod/ESP_05... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiPOD: Monitoring Sand Sheets and Dunes This crater features sand dunes and sand sheets on its floor. This kind of environment has been monitored by HiRISE since 2007 to look for movement in the ripples covering the dunes and sheets. uahirise.org/hipod/ESP_05... NASA/JPL-Caltech/UArizona #Mars

HiPOD: How Old Are You? The main target of this observation is the oval-shaped depression that looks like a collapse feature. A close inspection of this feature implies it is not a recent collapse. More: uahirise.org/hipod/ESP_08... NASA/JPL-Caltech/UArizona #Mars #science #NASA

HiPOD: A Cliff of Ice in Malea Patera Malea Patera is one of four volcanic constructs that make up Malea Planum in the Southern Highlands of Mars. This image shows the southern-most part of Malea Patera’s plateau escarpment. uahirise.org/hipod/ESP_08... NASA/JPL-Caltech/UArizona #Mars #science

HiRISE 3D: A Resistant Layer in the Medusae Fossae Formation A resistant layer here, interpreted as a lava flow, was apparently interbedded with the MFF and is worth a closer look in 3D. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona #Mars #science #3D

HiPOD: Gullies in a Southern Mid-Latitude Crater These gullies have formed on the northern slope of an impact crater in Hesperia Planum. The higher elevation gullies have formed at or just below the crater rim with wide alcoves. uahirise.org/hipod/ESP_08... NASA/JPL-Caltech/UArizona #Mars

HiRISE 3D: Ridges Associated with Dipping Layers in Reull Vallis Our goal is to investigate glacier -associated dipping layered deposits and land ridges closeby. www.uahirise.org/anaglyph/ESP... NASA/JPL-Caltech/UArizona #Mars

HiPOD: These Are Not the Dunes You’re Looking For In this picture, dark bands thought to be sand dunes are instead bands of surface boulders. The bouldery area looks dark at lower resolution because these rocks cast small shadows. More: uahirise.org/hipod/ESP_08... NASA/JPL/UArizona #Mars

HiPOD: A Crater on a Crater Wall It’s not that common to see craters on steep hills, partly because rocks falling downhill can quickly erase such craters. Here, however, a small impact occurred on the sloping wall of a larger crater and is well-preserved. uahirise.org/hipod/ESP_05... NASA/UArizona

HiPOD: Mars and the Amazing Technicolor Ejecta Blanket A close-up image shows the exposed bedrock of an ejecta blanket of an unnamed crater in the Mare Serpentis region of Mars. Ejecta, when exposed, reveal the sometimes exotic subsurface. More: uahirise.org/hipod/ESP_05... NASA/UArizona #Mars