Tag Archives: Mars Reconnaissance Orbiter

HiRISE: Side by side

Side by side. The objective of this observation is to examine a small channel that has cut through a crater north of Hellas Planitia. HiRISE Picture of the Day archive. [More at links]

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HiRISE: Quite smoooooth

Quite smoooooth. Here in Deuteronilus Mensae, there is a smooth geologic unit overlying plains material. There are also slightly convex-up edges, polygonal patterns on the surface, and softened craters. HiRISE Picture of the Day archive. [More at links]

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HiRISE: Bedrock on the floor of Kaiser Crater

HiRISE has often imaged inside Kaiser Crater to monitor active sand dunes and gullies. Surrounding these dunes, we often find clean bedrock exposures, because the actively moving sand clears off the dust. Kaiser Crater is 207 kilometers wide and was … Continue reading

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HiRISE: Pits and depressions to the east of Juventae Chasma

Pits and depressions to the east of Juventae Chasma. Juventae Chasma is a large box canyon, located north of Valles Marineris in the Coprates quadrangle and cuts more than 5 kilometers into the plains of Lunae Planum. HiRISE Picture of … Continue reading

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HiRISE: Abstract art in Ius Chasma

Sometimes Mars’ surface is just beautiful as seen through the eyes of HiRISE. This is one example on the floor of Ius Chasma, part of Valles Marineris. The region has had a complex history of sediment deposition, deformation, erosion, and … Continue reading

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MARCI weather report, April 8-14, 2019

Weather patterns were fairly typical across Mars this past week. Looking to the northern hemisphere, a couple of dust storms dipped southward towards southern Acidalia. Neighboring these events, a local-scale storm occurred over Tempe Terra near the beginning of the … Continue reading

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HiRISE: Landslides in Cerberus Fossae

Cerberus Fossae is a steep-sided set of troughs cutting volcanic plains to the east of Elysium Mons. Steep slopes on Mars have active landslides (also called “mass wasting”), and here we see evidence for two types of activity. First, the … Continue reading

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HiRISE: Impact-induced dust avalanches

HiRISE has been imaging new dark features discovered by MRO’s Context Camera, which are mostly new impact sites. In this scene we see what appears to be a new impact cluster and, extending downhill from the craters, new dark slope … Continue reading

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HiRISE: Gullies on Gorgonum Chaos mesas

Gullies on Gorgonum Chaos mesas. This observation shows part of Gorgonum Chaos, a large cluster of chaotic terrain found in the Southern Hemisphere. Many regions of chaotic terrain are found at the head of large outflow channels that were scoured … Continue reading

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HiRISE: Pits and flows

Pits and flows. This observation shows smooth-textured flows on the plateau south of the collapse pit chain of Ophir Catena. HiRISE Picture of the Day archive. [More at links]

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