Tag Archives: north polar ice cap

HiRISE: Defrosting dunes within Chasma Boreale

This image shows a dune field in Chasma Boreale, which is a large trough that cuts into the North Polar ice cap. Some of the dunes in this image are quite long and sinuous with a slight bulge at one … Continue reading

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Radar gives new info on Mars climate change, polar cap ages

Three-dimensional (3-D) subsurface radar volumes generated from thousands of 2-D radar profiles are revealing new information about the polar regions of Mars, including more accurate mapping of CO2 and water ices, the discovery of buried impact craters, and new elevation … Continue reading

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THEMIS: Northern ice cap’s edge in false color

THEMIS Image of the Day, June 19, 2017. Do you see what I see? I’d hang this piece of abstract art on my wall. (THEMIS Art #136) More THEMIS Images of the Day by geological topic.

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THEMIS: North polar ice cap troughs and layers

THEMIS Image of the Day, June 28, 2017. Do you see what I do? Looks like a person’s profile at the bottom of this image. (THEMIS Art #135) More THEMIS Images of the Day by geological topic.

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How Mars got its layered north polar cap

One of Mars’s most striking features is the giant dome of layered ice and dust at its northern pole, analogous to Earth’s ice sheets. Scientists have long debated what formed this dome, thought to have begun developing about 5 million … Continue reading

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MEX: Swirling spirals at the north pole of Mars

A new mosaic from ESA’s Mars Express shows off the Red Planet’s north polar ice cap and its distinctive dark spiralling troughs. The mosaic was generated from 32 individual orbit ‘strips’ captured between 2004 and 2010, and covers an area … Continue reading

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HRSC: Frost build-up near Mars north pole

This animated gif shows the build up of frosts in a 73 x 41 km section of the north polar ice cap of Mars between November and December 2004. The images were taken by the High Resolution Stereo Camera on … Continue reading

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3D images reveal Mars polar ice cap features

Three-dimensional subsurface images are revealing structures within the Martian polar ice caps, including previously obscured layering, a larger volume of frozen carbon dioxide contained in the south polar cap, and bowl-shaped features that may be buried impact craters within both … Continue reading

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THEMIS: Snow & ice fill crater in martian Arctic

THEMIS Image of the Day, November 30, 2016. This VIS image shows part of the north polar cap. This image is along the cap margin. The buried remnants of an impact crater are visible in the bottom half of the … Continue reading

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HiRISE: North polar cap layers and ledges

At the edge of Mars’ permanent North Polar cap, we see an exposure of the internal layers, each with a different mix of water ice, dust and dirt. These layers are believed to correspond to different climate conditions over the … Continue reading

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