HiPOD: The Remains of a Day Our objective is to determine the nature of a layered structure in a small, fresh impact crater. The layered mound seems to be above the rim in Context Camera data. It might be some sort of ring mold crater. https://uahirise.org/hipod/ESP_084566_2240 #Mars #NASA

HiRISE 3D: Features around a Crater near Hellas Planitia Today’s HiPOD also doubles as our 3D post, where we can view the terrain from a different perspective. https://www.uahirise.org/anaglyph/ESP_092807_1375_ESP_092596_1375_RED NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: Wonderfully Strange The aim of this image is to provide high-res data of these fascinating “cellular” formations on the surface of a debris covered glacier. We can investigate if they are linked to an interaction between crater ejecta and ice. https://uahirise.org/hipod/ESP_092807_1375

HiRISE 3D: Fractured Material in Tooting Crater Fractures are theorized as a source of groundwater supply to pitted materials immediately following deposition. Our goal is to look for evidence of groundwater release. https://www.uahirise.org/anaglyph/ESP_092737_2035_ESP_092236_2035_RED #Mars

HiPOD: In Iani Chaos The shape of this terrain is dominated by large-scale remnant massifs, which are large relief masses that have been moved and weathered as a block. Other images show there are light-toned deposits here amongst the chaos blocks. https://uahirise.org/hipod/ESP_077186_1780 #Mars

HiPOD: Sedimentary Rock Layers in Terby Crater Sedimentary layers record a history of Mars’ erosion and deposition by water and wind, and they make great landscapes for future interplanetary parks. https://uahirise.org/hipod/ESP_062860_1525 NASA/JPL-Caltech/University of Arizona #Mars #NASA

HiPOD: Dunes and Bedrock These sand dunes in a crater south of Mawrth Vallis are being monitored to measure changes. However, active dunes also clear the dust off of the bedrock between the dunes, which may have diverse colors and compositions. https://uahirise.org/hipod/ESP_062863_1980 #Mars

HiRISE 10K: Stratigraphy of the North Polar Deposits This image shows an example of layers in the Martian North Polar deposits. These deposits are composed mainly of water ice and small amounts of dust. Full cutout on Flickr: https://flic.kr/p/2ssnadJ #Mars #NASA #science

HiPOD: Depressions in Deuteronilus Mensae The objective of this suggestion is to determine the nature of depressions, some of which have high, steep walls. Pictures like this one will help us determine how this material evolves over time. https://uahirise.org/hipod/ESP_077171_2255 #Mars #NASA

HiRISE 8K: Reading the Rock Record at Nili Fossae This image captures a record of changing environments on ancient Mars, as recorded in the rock record at Nili Fossae. Full cutout on Flickr: https://flic.kr/p/2ssodVn NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: Mantling and Glacial Erosion This observation features a mantled impact crater with a good exposure of bedrock on the nothern part of the rim. Other areas of bedrock show signs of erosion. The central pit may also be possibly mantled. https://uahirise.org/hipod/ESP_077151_2185 #Mars #NASA

HiRISE 4K: Russell Crater Sand Dunes Channels down the face of the largest dune show dark spots where the sublimation of the seasonal carbon dioxide ice cap has begun. Full cutout on Flickr: https://flic.kr/p/2ss1KXC NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiRISE 3D: Anaglyph Gullies Our science goal? To look for changes in the gullies, including possibly fresh deposits of material. https://www.uahirise.org/anaglyph/ESP_084450_1285_ESP_092335_1285_RED NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: Hydrated Sulfates in Columbus Crater From HiWish: “An area of mineralogic interest identified by CRISM, which lacks HiRISE coverage.” Sulfate-rich rock outcrops on Mars may be a good location to search for evidence of past life on the planet. https://uahirise.org/hipod/ESP_077152_1510

HiRISE 3D: Hale Crater Gullies The gullies are very deeply incised with extensive debris aprons. There are piles of material (boulders? snowpack?) that clog some of the gully channels. https://www.uahirise.org/anaglyph/ESP_092232_1450_ESP_092311_1450_RED NASA/JPL-Caltech/University of Arizona

HiPOD: Periglacial Terrain in Protonilus Mensae With this observation, the existing periglacial mantle near a previous image can be better constrained across this area. Futher up from this pic, the terrain appears scoured and the mantle is discontinous. https://uahirise.org/hipod/ESP_077144_2250

HiRISE 3D: Layered Deposits of a Pollywog Crater A “pollywog” defines an exit breach possibly feeding candidate fluvial or lake sediments to a young crater at the equator. https://www.uahirise.org/anaglyph/ESP_092536_1830_ESP_092760_1830_RED NASA/JPL-Caltech/University of Arizona #Mars #NASA

HiPOD: Avalanche Season Avalanches have been observed at this scarp, north of the another location with such activity. Monitoring this site is key to constrain the frequency of avalanches and timing of the onset of “avalanche season”. https://uahirise.org/hipod/ESP_077162_2650 #Mars #NASA

HiPOD: In the Wake of Ancient Lava Flows Long ago, a large lava flow passed through the Athabasca Valles region of Mars. We can tell which direction it was flowing by examining the surface of the flow and the remaining “lava wakes.” https://uahirise.org/hipod/ESP_075360_1840 #Mars #science #NASA

A newly found world blurs the boundary between planet and moon

A newly found world blurs the boundary between planet and moon

The object orbits a brown dwarf that orbits a star, and astronomers aren’t sure if it’s a planet, a moon — or something else entirely.

sciencenews.org

HiPOD: Cliffs of Ice Sometimes a feature like a cliff cuts through the terrain and gives us a glimpse of buried icy material. The cliff in this image is one example out of a few dozen that are known. More: https://uahirise.org/hipod/ESP_074914_1225 NASA/JPL-Caltech/University of Arizona #Mars

HiRISE 3D: Ice Margin This eerie-looking image shows us the icy margin of a lobe-shaped debris apron. What geological dynamics are at play here? https://www.uahirise.org/anaglyph/ESP_092715_1370_ESP_092504_1370_RED NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: A Crop of Gullies The objective of this observation is to examine large gullies within an impact crater in Terra Cimmeria. There are not too many large gullies in this area, but this crater has many of them. https://uahirise.org/hipod/ESP_077114_1345 #Mars #science #NASA

HiRISE 3D: Small and Recent Craters here are distinctive in day and night infrared, relatively abundant over this area: are these primaries or secondaries? We can look for directional indicators. https://www.uahirise.org/anaglyph/ESP_092211_1630_ESP_092936_1630_RED #Mars #NASA #science

HiPOD: Deposits and Flows We are observing how surface flow patterns in the area vary with distance from the proposed parent crater. This is one of several flow feature observations being suggested in the vicinity of the crater to the east of here. https://uahirise.org/hipod/ESP_077165_1440

HiRISE 3D: Of a Crater Compared to the other ones in this image, this crater is geologically fresh, as we can still see the dark ejecta from the impact that hasn’t faded yet. https://www.uahirise.org/anaglyph/ESP_085139_1480_ESP_092958_1480_RED NASA/JPL-Caltech/University of Arizona #Mars #NASA

HiPOD: The Layered Mesa The objective of this observation is to examine a layered mesa within a small impact crater. The layers are horizontal and well-defined. These features are fairly common in this region of the Martian northern plains. https://uahirise.org/hipod/ESP_077117_2195 #Mars #NASA

HiRISE 3D: Martian Erebor? This footprint is also visible in Context Camera data, but HiRISE can view these interesting lobes in higher resolution. (“Erebor” is the name of the Lonely Mountain in JRR Tolkien’s Middle Earth.) https://www.uahirise.org/anaglyph/ESP_084819_1045_ESP_093007_1045_RED

HiPOD: Split Ridge, Small Crater Also visible in Context Camera image data, the objective of this observation is to determine the nature of a relatively large split ridge in a small impact crater. https://uahirise.org/hipod/ESP_077155_1375 NASA/JPL-Caltech/University of Arizona #Mars #NASA