Tag Archives: Mars Reconnaissance Orbiter

HiRISE: Plains with clay exposures

Posted on August 1, 2019 by rburnham

Plains with clay exposures. If at first you don’t succeed: an earlier observation we took of this area in 2016 was too hazy to study, so a re-image can get us the closer look at clay exposures we wanted. HiRISE … Continue reading →

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HiRISE: Possible jarosite on a plateau in Nili Fossae

Posted on July 31, 2019 by rburnham

Possible jarosite on a plateau in Nili Fossae. Recent analyses of CRISM data have discovered jarosite in this portion of the trough wall, possibly within a previously identified aluminum clay unit. Jarosite is a sulfate mineral also detected by the … Continue reading →

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HiRISE: Small craters in Promethei Terra

Posted on July 30, 2019 by rburnham

Small craters in Promethei Terra. The target area is for the theoretical landing of a rover, in a flat area close by. The craters in the target area are important because they are a potential source of rock samples that … Continue reading →

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HiRISE: Layers in Tikhonravov

Posted on July 29, 2019 by rburnham

Layers in Tikhonravov. The objective of this observation is to examine layers outside of a crater within the 344-kilometer diameter Tikhonravov Crater. Tikhonravov is believed to have once held a giant lake and was named after Mikhail Tikhonravov, a Russian … Continue reading →

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HiRISE: Flow, moving

Posted on July 26, 2019 by rburnham

Flow, moving. The objective of this observation is to examine a flow that goes through a crater in Nilosyrtis Mensae. It was probably larger in the past and has since been reduced in volume. HiRISE Picture of the Day archive. … Continue reading →

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HiRISE: The hills in Eos Chasma

Posted on July 25, 2019 by rburnham

The hills in Eos Chasma. They may not be alive with the sound of music, but we’ll take the opportunity to look for recurring slope lineae, small gullies and slumped material. HiRISE Picture of the Day archive. [More at links]

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MARCI weather report, July 15-21, 2019

Posted on July 24, 2019 by rburnham

For the past week on Mars, small sporadic dust storms continued along the south polar hood. Dust activity was also observed a bit further north over Solis Planum, central Cimmeria, and just south of eastern Valles Marineris. Looking to the … Continue reading →

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HiRISE: Floor and north rim of Dokka Crater

Posted on July 24, 2019 by rburnham

Floor and north rim of Dokka Crater. Dokka Crater is 52-kilometers in diameter and located in the north polar region of Mars. Its interior is presumably a remnant of a former polar cap with larger extension, so it could provide … Continue reading →

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HiRISE: McLaughlin Crater dunes

Posted on July 23, 2019 by rburnham

McLaughlin Crater dunes. This image is part of a seasonal monitoring campaign to detect changes and quantify migration rates of the dunes in McLaughlin Crater. McLaughlin is one of the deepest craters on Mars, and was named after Dean B. … Continue reading →

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HiRISE: Dust devils dancing on dunes

Posted on July 22, 2019 by rburnham

Dust devils dancing on dunes. Dust devils make dark, diffuse scribble markings on the surface by kicking up dust, and are especially active in the summertime over dark surfaces, such as those with many deposits of sand-sized material. HiRISE Picture … Continue reading →

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