Tag Archives: north polar sand sea

THEMIS: Hyperboreae Undae

THEMIS Image of the Day, May 17, 2016. Several dunes fields are found near the north polar cap. Today’s VIS image shows part of Hyperboreae Undae, which is located between Escorial Crater and the margin of Chasma Boreale. More THEMIS … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS: Sea of sand in Siton Undae

THEMIS Image of the Day, April 20, 2016. Today’s VIS image shows part of Siton Undae, a dune field located near Escorial Crater and the north polar cap. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS: More Olympia Undae

THEMIS Image of the Day, March 28, 2016. The arc shaped feature at the bottom of this VIS image is the remaining rim of a crater. The dunes of Olympia Undae have surrounded the rim and small individual dunes are … Continue reading

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

THEMIS: Olympia Undae

THEMIS Image of the Day, March 25, 2016. This VIS image shows a small portion of Olympia Undae, a large dune field located near the north polar cap. More THEMIS Images of the Day by geological topic.

Posted in Reports | Tagged , , , , , , , , | Comments Off

THEMIS: Olympia Undae

THEMIS Image of the Day, March 23, 2016. This VIS image shows a small portion of Olympia Undae, an extensive dune field near the north polar cap. This image was collected during summer, so the dunes are free of surface … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Ice amid polar dunes

Atypical landform among dunes in a polar erg — There is a very unusual ice formation apparently growing in a flat spot between dunes of the polar erg. Located on the actual dune material and not in the inter-dune material. Beautiful … Continue reading

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

HiRISE: Summer sand dunes

Mars’ permanent North Polar cap is ringed by sand dunes. In the winter and spring the dunes are covered by a seasonal cap of dry ice. Here, we see the dark dunes in the summer, bare of seasonal frost. Two … Continue reading

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Contact between polar ice & surroundings

Contact between polar ice and surrounding features. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

HiRISE: Erosion & deposition in Schaeberle Crater

Schaeberle Crater is a large, heavily-infilled crater with many interesting features. This image shows a window into the crater fill deposit, showcasing eroding bedrock and aeolian landforms. This pit is located near the geometric center of our image, making it … Continue reading

Posted in Reports | Tagged , , , , , , , , , , , , | Comments Off

THEMIS: Hyperboreae Undae

THEMIS Image of the Day, January 15, 2016. Today’s VIS image shows part of Hyperboreae Undae, a dune field located between the north polar cap and Escorial Crater. This image was taken during northern spring and the dunes still have significant … Continue reading

Posted in Reports | Tagged , , , , , , , , , , | Comments Off