HiRISE: Beautiful Mars (NASA)

HiRISE 3D: Streamlined Forms near Granicus Valles The objective of this observation is to examine a field of streamlined shapes in channels. NASA/JPL-Caltech/University of Arizona #Mars #NASA #science

HiPOD: The Beauty of Inverted Channels A public suggestion from HiWish: to image an area within an eroded impact crater that shows very clear layers and inverted channels exposed in the distal ends of two alluvial fans. #Mars #science #NASA

HiRISE 3D: A Degraded Glacier A degraded lobate debris apron reveals former internal flow structure. Across-flow transect imaging would enable quantification of variable boulder density in different units of internal flow. #Mars #NASA #science

HiPOD: Layering and Cross-Cutting Bands This mound exhibits layering and cross-cutting bands that correspond to an iron/magnesium phyllosilicate composition elsewhere in mounds in Chryse Planitia. NASA/JPL-Caltech/University of Arizona #Mars #NASA

HiPOD: Irregular Circular Depressions around Naar Crater Our objective is to analyze a new unknown feature dubbed “irregular circular depressions.” The features are located directly on the outer rim of the crater. NASA/JPL-Caltech/University of Arizona

HiPOD: A Lava Flow near the Elysium Rise The lava flow in the image shows prominent lobate margins, irregular chains of pits towards the center, and ridges along the interior of the margins. NASA/JPL-Caltech/University of Arizona #Mars #science #NASA

HiPOD: Impact-Related Flows in Margaritifer Terra Our rationale for acquiring this image it to observe how the surface flow patterns in the area vary with distance from the crater. ID: ESP_069643_1605 date: Friday, 4 June 2021 altitude: 258 km (160 mi)

HiPOD: Well-Preserved Polygons Polygons are interesting features on Mars, though sometimes only visible in high resolution images like those taken by HiRISE. They often form due to the contraction and expansion of ice under the surface. #Mars #NASA

HiPOD: Ancient Bedrock in the Southern Highlands This image of an ancient rocky hill proved to be surprisingly colorful due to diverse rock compositions. The bluish and greenish rocks are probably unaltered rocks rich in pyroxenes and olivine. #Mars

HiPOD: Ancient Layers Exposed by a Crater within a Crater This close-up view of the rim of an impact crater shows thin layers that overlie much more extensive ones. These varied colors likely mark different compositions. More: #Mars #science #NASA

HiPOD: Glacial and Periglacial Terrains This image will help define the fine-grained shapes of a glacial terrain just east of a periglacial mantle that appeared in earlier observation. NASA/JPL-Caltech/University of Arizona #Mars #science #NASA

HiPOD: Light and Dark Dunes in Nili Fossae Our science goal with this observation is one of monitoring these odd, light-colored dome and barchan dunes on the floor of Nili Fossae, a known high sand flux region. NASA/JPL-Caltech/University of Arizona

HiPOD: A Flow Intersection At this location, a portion of the Cerberus Fossae seems to intersect with the edge of a lava flow or other feature nearly perpendicular to the fossae. This could be a good location to investigate stratigraphic relationships.

HiPOD: A Layered Butte near Mawrth Vallis This landform has many interesting characteristics like bright-toned layering at the meter scale and fracturing. This image can help us understand how the thickness of the bright-toned deposit changes over time. ID: ESP_072096_2065

HiPOD: Wonderful Gullies When we have an opportunity to image gullies, we’ll definitely do it! This observation is to re-image these very nice gullies for change detection, to get better topography and to look for possible fresh deposits. ID: ESP_065243_1410

HiPOD: Troughs and Ridges in Reull Vallis Our objective is to determine the nature of a group of ridges, troughs, and pits. They have a certain shape that repeats over and over, that may be affected by the change in the valley’s direction at this point.

HiPOD: In Search Of...Wind Streaks A key feature of wind streaks is their high rate of erosion. Dark wind streaks erode a few centimeters a year. The proposed area appears to be a dark wind streak and is rapidly changing. #Mars #NASA

HiPOD: Exposed on Mounds The objective of this observation is to examine layers exposed on mounds in a valley to the south of Nilosyrtis Mensae. Nilosyrtis is just to the east of Protonilus Mensae and both lie along the Martian dichotomy boundary.

HiPOD: Ancient Clays near the Hellas Basin Ancient clay-rich sediments (orangish color and polygonal fractures) exposed between wind-blown dunes and patches of sand northwest of the giant Hellas impact basin. NASA/JPL-Caltech/University of Arizona #Mars

HiPOD: Sourcing the Dark Sands of Nili Fossae Nili Fossae has been a favorite target of HiRISE since its arrival at Mars in 2006, for many reasons, including the dramatic shape of the giant trough network and its diverse geologic materials. #Mars #NASA