Tag Archives: sand

Mars sand moves under different conditions than Earth sand

Wind has shaped the face of Mars for millennia, but its exact role in piling up sand dunes, carving out rocky escarpments or filling impact craters has eluded scientists until now. In the most detailed analysis of how sands move … Continue reading

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

THEMIS: Arabia Terra crater in false color

THEMIS Image of the Day, May 23, 2019. Today’s false color image shows part of an unnamed crater in Arabia Terra. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to … Continue reading

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

THEMIS: Basaltic dunes on a Meridiani Planum crater floor

THEMIS Image of the Day, May 16, 2019. Today’s false color image shows an unnamed crater north of Meridiani Planum. The dark blue features are small basaltic sand dunes. The THEMIS VIS camera contains 5 filters. The data from different … Continue reading

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

Curiosity: Rolling along behind the ridge

Sol 2361, March 29, 2019. Leaving a zigzag track (click the composite image above), Curiosity continues to roll northeastward behind Vera Rubin Ridge, roughly paralleling its direction. Sand dune “blow-overs” are visible to the left of the rover in the … Continue reading

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

THEMIS: Arabia Terra crater dunes

THEMIS Image of the Day, February 27, 2019. This VIS image shows the floor of an unnamed crater in Arabia Terra. The peaks in the center of the crater floor were formed by the rebound of melted rock at the … Continue reading

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

THEMIS: Basaltic sands in Marth Crater

THEMIS Image of the Day, February 21, 2019. This false color image shows part of the floor of Marth Crater. Dark blue tones typically indicate basaltic sands. Wind action is blowing the sand and dust to the southern side of … Continue reading

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

THEMIS: Pasteur Crater in false color

THEMIS Image of the Day, February 20, 2019. Today’s image shows part of the floor of Pasteur Crater. The deposit in the southwest part of the floor is a fill deposit that is undergoing erosion. Small sand dunes are found … Continue reading

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

THEMIS: High-latitude dune field

THEMIS Image of the Day, February 14, 2019. Today’s VIS image shows a dune field on a crater floor in Terra Cimmeria. Dunes at high latitudes – near the polar caps – are affected by seasonal frost and ice. The … Continue reading

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

THEMIS: Sand sheet in Matara Crater

THEMIS Image of the Day, February 13, 2019. Today’s VIS image shows the sand deposit on the floor of Matara Crater. The deposit is thick enough to hide the underlying crater floor creating a sheet of sand. Upon this sheet … Continue reading

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

THEMIS: Dunes and dust devil tracks in Terra Cimmeria

THEMIS Image of the Day, January 30, 2019. This unnamed crater in Terra Cimmeria has both a sand sheet with dune forms and a multitude of dust devil tracks. The linear and scalloped dark marks are created by dust devils … Continue reading

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