Tag Archives: Mars Reconnaissance Orbiter

HiRISE: Blink and you’ll miss them

Posted on February 27, 2019 by rburnham

Blink and you’ll miss them. The dust devil tracks in this image have faded considerably since an earlier image, something we wanted to measure. If you look to the lower left and center, you can still see some of them. … Continue reading →

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HiRISE: Diverse lithologies of the Fourth Planet

Posted on February 26, 2019 by rburnham

Diverse lithologies of the Fourth Planet. This nice image is located in Syrtis Major, right next to Isidis Planitia and south of the Nili Fossae formations. On Mars. HiRISE Picture of the Day archive [More at links]

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HiRISE: Rupes Tenuis

Posted on February 25, 2019 by rburnham

Rupes Tenuis. While it may sound like a medical condition, Rupes Tenuis is actually a scarp in the north polar region. We took this image to track any changes from a 2012 observation. (The name is Latin for “thin cliff”.) … Continue reading →

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HiRISE: Sinuous ridge in Peraea Cavus

Posted on February 22, 2019 by rburnham

A sinuous ridge in Peraea Cavus. In addition to the ridge, there’s also bright deposits here. A cavus is an irregular steep-sided depression usually in arrays or clusters. HiRISE Picture of the Day archive [More at links]

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HiRISE: Following the tracks

Posted on February 21, 2019 by rburnham

Dust devils on Mars often create long, dark markings where they pull a thin coat of dust off the surface. This image shows a cluster of these tracks on the flat ground below the south polar layered deposits, but none … Continue reading →

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MARCI weather report, February 11-17, 2019

Posted on February 20, 2019 by rburnham

Martian weather patterns were fairly typical for this time of season, this past week. Local-scale dust storms pushed eastward along the margins of the seasonal north polar cap. A couple of these storms pushed southward across Acidalia near the beginning … Continue reading →

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HiRISE: Jumbled blocks on the floor of Melas Chasma

Posted on February 20, 2019 by rburnham

This part of Melas Chasma has been the target for many previous HiRISE images due to its diversity of terrains and materials. This observation covers an area not previously imaged, revealing a chaotic jumble of bright layered sediments, perhaps resulting … Continue reading →

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HiRISE: Almost like water

Posted on February 19, 2019 by rburnham

This image in Athabasca Valles shows lava flows originating from Elysium Mons to the northwest. A Context Camera image shows the lava flowed from the northwest to the southeast, diverting around obstacles as it settled. (The flow is outlined in … Continue reading →

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HiRISE: Recent impact site in Noachis Terra

Posted on February 18, 2019 by rburnham

This image shows a recent impact in Noachis Terra in the southern mid-latitudes of Mars. The impact occurred in dark-toned ejecta material from a degraded, 60-kilometer crater to the south. Rather than a single impact crater, we see multiple impacts … Continue reading →

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HiRISE: Plains with diverse lithologies

Posted on February 15, 2019 by rburnham

Plains with diverse lithologies. This observation was a “nadir” target, meaning our camera was pointing straight down at the surface. These pockmarked plains outside of a larger impact crater show some very nice colors. The top cutout is from our … Continue reading →

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