Tag Archives: sand dunes

Researchers pinpoint watery past on Mars

Researchers from Trinity College Dublin have discovered a patch of land in an ancient valley on Mars that appears to have held water in the not-too-distant past. In doing so, they have pinpointed a prime target to begin searching for past … Continue reading

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HiRISE: Craters on a crater’s floor

Craters on a crater’s floor. Beautiful Mars series.

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Curiosity update: Finishing at Stop 1

Sol 1603, February 9, 2017, update by USGS scientist Ryan Anderson: Yesterday’s plan went well, and ChemCam has run all of the planned diagnostics and will be back in action tomorrow! Similar to yestersol’s plan, the Sol 1603 plan begins … Continue reading

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Curiosity: Zooming in on Bagnold sands

Sol 1603, February 8, 2017. Three MAHLI views of one patch of Bagnold Dunes sand. As the instrument steps in, each successive image lies nested in the center of the previous one. The final view at bottom shows well-rounded and … Continue reading

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THEMIS: Basaltic sands in Argyre hills

THEMIS Image of the Day, February 7, 2017. Today’s false color image shows several areas of dunes and sand sheets with dune forms between the numerous hills in this region west of Argyre Planitia. Basaltic sand appears dark blue in … Continue reading

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THEMIS: Lines of dunes in Noachis Terra crater

THEMIS Image of the Day, Februrary 2, 2017. This VIS image shows sand dunes on the floor of an unnamed crater in Noachis Terra. Since Mars is universally dusty, the darker tone of the dunes shows they are relatively free … Continue reading

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THEMIS: Dune field in Hale Crater

THEMIS Image of the Day, February 1, 2017. Today’s VIS image shows a field of sand dunes on the floor of Hale Crater. Hale Crater is located in Noachis Terra north of Argyre Planitia. More THEMIS Images of the Day … Continue reading

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HiRISE: Dunes in northern summer

This dune field formed near the base of the North Polar cap. Dunes require a source of loose particulate material to form. The source of the northern dune fields around the polar cap may be from the layers of dusty … Continue reading

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THEMIS: Field of dunes in Sumgin Crater

THEMIS Image of the Day, January 30, 2017. Today’s VIS image shows sand dunes on the floor of Sumgin Crater. The crater is located in Noachis Terra north of Argyre Planitia. The dunes’ darker tone suggests they are relatively dust-free … Continue reading

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THEMIS: Crater channels, gullies, dunes & a pit

THEMIS Image of the Day, January 25, 2017. This VIS image shows part of an unnamed crater in Terra Cimmeria. The crater rim is dissected by gullies, and the central pit has several channels entering from the higher elevation of … Continue reading

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