Tag Archives: north polar ice cap

THEMIS: Northern polar ice cap edge

Posted on May 24, 2019 by rburnham

THEMIS Image of the Day, May 24, 2019. Today’s false color image shows part of the margin of the north polar cap and the surrounding plains. This image was collected during the northern summer season. The THEMIS VIS camera contains … Continue reading →

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Multiple former ice caps lie under the northern cap

Posted on May 22, 2019 by rburnham

Scientists have discovered remnants of ancient ice sheets buried in sand a mile beneath Mars’s north pole, they report in a new study. The findings show conclusive evidence of the waxing and waning of polar ice on the red planet … Continue reading →

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THEMIS: Polar cap’s edge in false color

Posted on May 22, 2019 by rburnham

THEMIS Image of the Day, May 22, 2019. Today’s false-color image shows the margin between the north polar cap and the surrounding plains (lower right). The polar cap was created by alternating layers of ice and dust, deposited over millions … Continue reading →

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THEMIS: Inuvik Crater in false color

Posted on May 21, 2019 by rburnham

THEMIS Image of the Day, May 21, 2019. Today’s false-color image shows Inuvik Crater, located near the north polar cap. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading →

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North residual polar cap holds both old dense ice and fresh snow

Posted on April 19, 2019 by rburnham

[Editor’s note: From a paper by Jonathan Bapst and three co-authors recently published in the Journal of Geophysical Research.] Thermophysical Properties of the North Polar Residual Cap using MGS TES • We identify residual water ice with elevated surface porosity … Continue reading →

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THEMIS: North polar ice cap in false color

Posted on April 18, 2019 by rburnham

THEMIS Image of the Day, April 18, 2019. The polar caps of Mars were deposited over millions of years. Seasonal depositions of ice and dust have created layer upon layer of material. In this false color image the white and … Continue reading →

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THEMIS: Chasma Boreale in false color

Posted on February 25, 2019 by rburnham

THEMIS Image of the Day, February 25, 2019. This false color image is located near the head of Chasma Boreale, a large trough in the north polar cap. The floor of the trough is mostly ice free. The linear features … Continue reading →

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THEMIS: Polar cap layers at Ultima Lingula

Posted on February 4, 2019 by rburnham

THEMIS Image of the Day, February 4, 2019. Today’s VIS image is located along the margin of Ultima Lingula, where the polar cap meets the surrounding plains. The feature in the center of the image is a chasma where the … Continue reading →

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HiRISE: The source of dunes in Chasma Boreale

Posted on January 15, 2019 by rburnham

The source of dunes in Chasma Boreale. This image shows dunes during the summer, when they were free from the seasonal layer of carbon dioxide ice that covers the region for much of the year. These dunes, which are near … Continue reading →

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European Space Agency: Supporting InSight

Posted on November 26, 2018 by rburnham

At just before 9pm Central European Time on 26 November, Mars will receive a new visitor: NASA’s InSight lander. (…) Since InSight’s study is focused on sensing the planet’s interior, surface geology is not such an important factor in deciding … Continue reading →

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