Tag Archives: north polar ice cap

HiRISE: A song of dune and ice

A song of dune and ice. This image shows rare dunes superposed on elements of the polar cap near Olympia Undae, which is a vast dune field in the north polar region of Mars. HiRISE Picture of the Day archive. … Continue reading

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North polar residual ice cap has recent snow-like surface

[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 Mars Global Surveyor Thermal Emission Spectrometer • We identify residual water ice … Continue reading

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THEMIS: Northern polar ice cap edge

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

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

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

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

[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

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

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

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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