Tag Archives: active dunes

THEMIS: Warm dunes glowing in Kaiser Crater

THEMIS Image of the Day, March 9, 2017. This is an infrared image of Kaiser Crater and the dune field on the crater floor. Brighter tones in the image are warmer surfaces. The basaltic dunes are dark in the visible, … Continue reading

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

THEMIS: Active sand dunes in Sirenum crater

THEMIS Image of the Day, March 6, 2017. Today’s VIS image shows a field of dunes on the floor of an unnamed crater in Terra Sirenum. Their dark color indicates they are dust-free and suggests that the dune sands are … Continue reading

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

HiRISE: Monitoring dunes in Coprates Chasma

Monitoring dunes in Coprates Chasma.  – Always keep your eye on those dunes. They creep up on you. Slowly. Beautiful Mars series.

Posted in Reports | Tagged , , | Comments Off

Mars winds carve mountains, move & raise dust

On Mars, wind rules. Wind has been shaping the Red Planet’s landscapes for billions of years and continues to do so today. Studies using both a NASA orbiter and a rover reveal its effects on scales grand to tiny on … Continue reading

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

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

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

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

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

THEMIS: Active dunes in Noachis Terra

THEMIS Image of the Day, January 10, 2017. Today’s VIS image shows part of Noachis Terra, including several large dunes on the floor of an unnamed crater. These dunes are dark in tone, hence free of the light dust that’s … Continue reading

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

HiRISE: Dark dunes over light-toned mega-ripples

Dark dunes over light-toned mega-ripples. Beautiful Mars series.

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

HiRISE: Tracking dune changes in Chasma Boreale

Tracking dune changes in Chasma Boreale. Beautiful Mars series.

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

THEMIS: Dark dune in Terra Sabaea crater

THEMIS Image of the Day, August 12, 2016. The large isolated dune in this VIS image is located on the floor of an unnamed crater in Terra Sabaea. Its dark tone suggests that the dune sand is largely dust-free, probably … Continue reading

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