Tag Archives: Noachis Terra

THEMIS: Winding channel of Nirgal Vallis

Posted on November 26, 2018 by rburnham

THEMIS Image of the Day, November 26, 2018. Today’s VIS image shows a small section of Nirgal Vallis. Located in Noachis Terra, Nirgal Vallis was carved by water and forms one of the longest valley systems on Mars. See more … Continue reading →

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

THEMIS: Big dunes and little ones in Russell Crater

Posted on November 14, 2018 by rburnham

THEMIS Image of the Day, November 14, 2018. This VIS image shows part of the floor of Russell Crater, including sand dunes of mulitple sizes. Russell Crater is located in Noachis Terra. Do small dunes merge to become big ones? … Continue reading →

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

THEMIS: Sinuous features hint at ground ice

Posted on November 8, 2018 by rburnham

THEMIS Image of the Day, November 8, 2018. This VIS image is located in an unnamed crater in Noachis Terra. The sinuous feature near the bottom of the crater rim appears to have been caused by down slope movement of … Continue reading →

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

THEMIS: Crater floor infill and valley

Posted on November 2, 2018 by rburnham

THEMIS Image of the Day, November 2, 2018. This VIS image shows a large linear depression in the center of an unnamed crater in Noachis Terra. This crater and the nearby Maunder and Asimov craters share this odd morphology. The … Continue reading →

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

Mars Express: Greeley Crater in Noachis Terra

Posted on October 26, 2018 by rburnham

The surface of Mars may appear to be perpetually still, but its many features are ever-changing – as represented in this Mars Express view of the severely eroded Greeley impact crater. Greeley crater, named for the renowned planetary scientist Ronald … Continue reading →

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

HiRISE: Bedrock exposures in the highlands

Posted on October 23, 2018 by rburnham

Bedrock exposures in the highlands. The bedrock here is ancient. Beautiful Mars series. [More at links]

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

Early Mars: Arid, with occasional snow or rain

Posted on October 18, 2018 by rburnham

[Editor’s note: From a paper by Yo Matsubara, Alan Howard, and Ross Irwin recently published in the Journal of Geophysical Research.] Constraints on the Noachian paleoclimate of the martian highlands from landscape evolution modeling Evidences show that Mars was once wetter … Continue reading →

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

THEMIS: False-color dunes in Proctor Crater

Posted on August 30, 2018 by rburnham

THEMIS Image of the Day, August 30, 2018. Today’s false-color image shows the floor of Proctor Crater, including the large dune field. Basaltic sands are typically blue in false-color images. Proctor Crater is located in Noachis Terra. The THEMIS VIS … Continue reading →

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

HiRISE: Layered material in a crater floor in Noachis Terra

Posted on March 16, 2018 by rburnham

Layered material in a crater floor in Noachis Terra. Beautiful Mars series.

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

THEMIS: Kaiser Crater dunes in false color

Posted on February 2, 2018 by rburnham

THEMIS Image of the Day, February 2, 2018. This is a false color image of Kaiser Crater. In this combination of filters “blue” typically means basaltic sand. This VIS image crosses 3/4 of the crater and demonstrates how extensive the … Continue reading →

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