Tag Archives: gullies

HiRISE: Some of the scene around Hale Crater

Posted on September 8, 2014 by rburnham

Some of the scene around Hale Crater. Beautiful Mars series.

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HiRISE: Gully monitoring

Posted on September 2, 2014 by rburnham

Gully monitoring. Beautiful Mars series.

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THEMIS: Crater dunes and gullies

Posted on August 22, 2014 by rburnham

THEMIS Image of the Day, August 22, 2014. This unnamed crater has gullies along the inner rim and dunes on the crater floor. More THEMIS Images of the Day by geological topic.

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HiRISE: Frosty gullies

Posted on July 31, 2014 by rburnham

HiRISE monitoring has shown that gully formation on Mars occurs in winter and early spring in times and places with frost on the ground. This image was acquired in late winter, and the frost or ice (visible as white areas) … Continue reading →

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HiRISE: Activity in Martian gullies

Posted on July 17, 2014 by rburnham

This image covers a location that has been imaged several times to look for changes in gullies. The cutout shows a comparison between the first HiRISE image of the location and one of the more recent views. A lobate, rubbly … Continue reading →

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Mars gullies carved by CO2 frost, not water?

Posted on July 10, 2014 by rburnham

Repeated high-resolution observations made by NASA’s Mars Reconnaissance Orbiter (MRO) indicate the gullies on Mars’ surface are primarily formed by the seasonal freezing of carbon dioxide, not liquid water. The first reports of formative gullies on Mars in 2000 generated … Continue reading →

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HiRISE: Revealing landslide in Hebes Chasma

Posted on July 8, 2014 by rburnham

This image shows a prominently stratified transect through the rock of a mountain of material in the middle of Hebes Chasma. The knobby material showing several lineations in the center of the scene may be remnants of landslides that exposed … Continue reading →

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HiRISE: Russell Crater dune and gully changes

Posted on July 1, 2014 by rburnham

Changes among the Russell Crater dunes and gullies. Beautiful Mars series.

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Canadian Arctic analog for Mars gullies

Posted on June 17, 2014 by rburnham

A spring that flows year-round on Ellsmere Island in the high Canadian Arctic may be an analog for some types of gullies on Mars, according to a newly published paper in the journal Geology. A team of geologists led by … Continue reading →

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HiRISE: Frosted gullies

Posted on June 9, 2014 by rburnham

Beautiful Mars series. Frosted gullies. More Beautiful Mars images.

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