HiRISE (NASA)
HiRISE is a high resolution camera onboard the Mars Reconnaissance Orbiter (NASA). We take images of the surface of Mars. Based out of UArizona in Tucson.
Joined Aug 2018
HiPOD 24 Jan 23: Gully Activity in Triolet Crater
Gullies lying on the northeast slopes of Triolet Crater (about 11.6 km in diameter), are located in the Southern Highlands just east of Gorgonum Chaos. Some gullies have eroded through resistant layers up to the crater rim.
HiClip: Going with the Flow (narrated by Tre Gibbs)
HiPOD 23 Jan 23: Going with the Flow
This image shows part of the valley floor that filled with glacial ice. Can you see the parallel ridges on some of the glaciers that show how the ice flowed downhill, around and between obstacles?
HiPOD 22 Jan 23: Kasei Valles
Kasei Valles is a valley system was likely carved by some combination of flowing water and lava. In some areas, erosion formed cliffs along the flow path resulting in water or lava falls. The flowing liquid is gone but the channels and ”dry falls” remain.
Since its formation, Kasei Valles has suffered impacts—resulting in craters—and has been mantled in dust, sand, and fine gravel as evidenced by the rippled textures.
HiPOD 21 Jan 23: Fine-Branched Ridges
The raised relief of these branching ridges suggests that these are ancient channels are inverted due to lithification and cementation of the riverbed sediment, which made it more resistant to erosion than the surrounding material. Wind-blown bedforms are abundant and resemble small ridges that are aligned in an approximately north-south direction.
https://uahirise.org/hipod/ESP_024497_1745
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HiPOD 20 Jan 2023: An Inlet Channel to Jezero Crater
This image is one of many over the source region of the river delta in Jezero Crater. The Perseverance rover is exploring this delta and collecting samples that might be returned to Earth in the future, for detailed analysis.
This image shows part of the eroded channel leading to the delta, so a returned rock sample might have originated here.
https://uahirise.org/hipod/ESP_076523_1990
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HIPOD 19 Jan 2023: Bizarre Icy Landforms
The Martian middle latitudes reveal may strange landforms.
This image shows roundish landforms covered by polygons and surrounded by trenches. Some combination of ice expansion and contraction, sublimation, and flow may have created this landscape.
https://uahirise.org/hipod/ESP_076511_2205
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HiPOD 18 Jan 2023: A Cone-Shaped Pit on South Polar Deposits
This image is part of a stereo pair covering this strange pit on the edge of the South Polar residual cap. This will be the third stereo pair acquired by HiRISE over this feature, to measure any changes in the depth and shape of the pit over time, as it might be actively collapsing due to loss of carbon dioxide ice from the subsurface.
https://uahirise.org/hipod/ESP_076532_0920
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HiRISE 3D: Knobs in Chryse Planitia
This picture can help us measure the shape of the cones to compare with other across Mars. Are these mud volcanoes?
https://www.uahirise.org/anaglyph/ESP_075604_1990_ESP_076593_1990_RED
HiPOD 17 Jan 2023: Halos and Fracture Lines
This pattern may result from deposition or removal of dust and/or carbon dioxide frost. Bright lines probably marking fractures can be seen over the relatively dark high-standing areas.
Hi3D: Flow Margin in Phlegra Dorsa
Our goal is to resolve fine flow textures and fractures and create a high resolution DTM.
NASA/JPL-Caltech/UArizona
#Mars #science #space #astronomy
HiPOD 16 Jan 2023: Ancient Fluvial Activity
The Aeolis region of Mars is full of ancient fluvial (created by flowing water) landforms such as channels and deltas, often with inverted topography: what was down is now up due to differential erosion.
The curving raised feature was a river channel, but coarse sediment or indurated materials made the channel bottom more resistant to erosion so now it is relatively high.
https://uahirise.org/hipod/ESP_076507_1735
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HiPOD 13 Jan 2023: Two-Color Aeolian Ridges
This image covers part of the floor of Noctus Labyrinthus at the western end of Valles Marineris.
The cutout shows aeolian (wind-formed) ridges that have a reddish color on their southeast-facing slopes and a bluish color on their northwest-facing slopes. Most likely this color difference is due to deposition or preservation of reddish dust on generally south-facing slopes.
https://uahirise.org/hipod/ESP_076582_1730
NASA/JPL-Caltech/UArizona
#Mars #science #NASA
HiRISE 10K: Faulting in South Polar Layered Deposits
Our science goal is to examine the detailed stratigraphy of unusual faulting features within the these layered deposits. See link for full cutout and additional info.
flic.kr/p/2oaZvbM
NASA/JPL-Caltech/UArizona
#Mars
HiRISE (NASA)
HiRISE is a high resolution camera onboard the Mars Reconnaissance Orbiter (NASA). We take images of the surface of Mars. Based out of UArizona in Tucson.
Joined Aug 2018