Tag Archives: Arabia Terra

HiRISE: Arabia Terra stratigraphy

Posted on April 28, 2015 by rburnham

Arabia Terra stratigraphy. Beautiful Mars series.

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Evidence of groundwater in Arabia Terra; if on Earth, could permit microbial colonization

Posted on March 28, 2015 by rburnham

Monica Pondrelli [Università d'Annunzio, Italy] and colleagues investigated the Equatorial Layered Deposits (ELDs) of Arabia Terra in Firsoff crater area, Mars, to understand their formation and potential habitability. [Their report appears in the Geological Society of America Bulletin.] On the … Continue reading →

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THEMIS: Arabia Terra false color

Posted on February 26, 2015 by rburnham

THEMIS Image of the Day, February 26, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading →

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HiRISE: Fresh valley in northern Arabia Terra

Posted on February 20, 2015 by rburnham

This relatively fresh, shallowly incised valley was once filled with water and/or ice and flowed to the west toward a large, local depression in northern Arabia Terra (36.5 degrees north, 0.3 degrees east). This type of valley is younger and … Continue reading →

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‘Knobby terrain’ a sign of Mars’ explosive past

Posted on January 28, 2015 by rburnham

The Red Planet’s upper crust is brittle and weak. Planetary geologists often attribute this to effusive eruption — lava pouring out of a volcano onto the ground — early in Mars’s history with later modifications. However, some have suggested that … Continue reading →

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HiRISE: Eroding terrain in Arabia Terra

Posted on December 23, 2014 by rburnham

This image, approximately 1.5 x 3 kilometers, shows a sample of eroded Martian terrain in Arabia Terra. At one time this was a flat smooth terrain, but over time it has been eroded (most likely by the wind) forming depressed, … Continue reading →

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HiRISE: Dunes and wind streaks in Arabia Terra

Posted on December 5, 2014 by rburnham

Arabia Terra is one of the more dusty regions on Mars, where ever-falling red dust covers the surface allowing only minor variations in color and tone. One exception is when wind-driven, dark-toned sand moves across the surface ejecting the bright … Continue reading →

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HiRISE: We ♥︎ Arabia Terra

Posted on November 25, 2014 by rburnham

We ♥︎ Arabia Terra. Beautiful Mars series.

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HiRISE: Bright slope streaks in Arabia Terra

Posted on October 6, 2014 by rburnham

This observation shows bright and dark slope streaks in craters in the Arabia Terra region. Slope streak formation is among the few known processes currently active on Mars. The cause of slope streaks is still debated, and both dry and … Continue reading →

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HiRISE: Gorgeous geology in Arabia Terra

Posted on September 29, 2014 by rburnham

Gorgeous geology in Arabia Terra. Beautiful Mars series.

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