Tag Archives: MRO

HiRISE: Troughs and ridges

Troughs and ridges. These wide troughs in Chryse Planitia have a narrow ridge running down the middle. How did these form? (North is to the right.) HiRISE Picture of the Day archive. [More at links]

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HiRISE: When lava moved

When lava moved. The objective of this observation is to examine the remains of an ancient lava flow moving in a trough in the Claritas Fossae region. Pictures like this may tell us more about how lava flowed on Mars. … Continue reading

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MARCI weather report, June 17-23, 2019

With the exception of a single arcuate-shaped dust storm, similar in morphology to a terrestrial low-pressure systems, which was dipping southward across Acidalia, the northern lowlands were relatively uneventful this past week. In the southern hemisphere, a dust storm north … Continue reading

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HiRISE: Along a scarp

Along a scarp. All along this section of scarp of a canyon in Kasei Valles, there appears to be a lobe-shaped margin of something (lava? mud? flood sediments?) that flowed into this trough, coated the floor and subsequently drained. What’s … Continue reading

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MARCI weather report, June 10-16, 2019

The regional dust storm noted in the previous week’s report had abated by the beginning of this past week, with only a remnant dust haze visible around Olympus Mons for a couple additional sols. Conditions along the edge of the … Continue reading

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HiRISE: Volcanic field on floor of Coprates Chasma

A volcanic field on the floor of Coprates Chasma. In this image, there are some nice cones with summit craters surrounded by a flow field. They look young, but they could have been buried and re-exhumed based on nearby pedestal … Continue reading

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HiRISE: Uncommon

Uncommon. Craters are, of course, common on Mars, but what is interesting about this one is that the impact excavated some uncommon hydrous minerals. Also, the image suggester’s name is John Carter. Make of that what you will. HiRISE Picture … Continue reading

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HiRISE: Cratered cones on northern plains

Cratered cones on northern plains. The title alone sounds delicious. These cratered cones might be mud volcanoes, landforms created by the eruption of mud or slurries, water and gases. No lava involved. HiRISE Picture of the Day archive. [More at … Continue reading

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CRISM: Olivine and pyroxene in ejecta from northern plains crater

CRISM scene HRL00003BEE covers an area in close proximity to a crater in the northern plains of Mars. In this image, we see strong Fe-rich olivine (yellow) and high calcium pyroxene (HCP, blue) signatures in the ejecta near the crater … Continue reading

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HiRISE: A channel in the southern mid-latitudes

A channel in the southern mid-latitudes. The objective of this observation is to examine a channel on the eastern side of an eroded crater wall. This scene was also imaged by the Context Camera onboard MRO. HiRISE Picture of the … Continue reading

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