Water ice in crater at Martian north pole

[C1ay]

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA’s Mars Express spacecraft, show a patch of water ice sitting on the floor of an unnamed crater near the Martian north pole.

 

lefthttp://hypography.com/gallery/files/9/9/8/CraterIce_thumb.jpg[/img]The HRSC obtained these images during orbit 1343 with a ground resolution of approximately 15 metres per pixel. The unnamed impact crater is located on Vastitas Borealis, a broad plain that covers much of Mars's far northern latitudes, at approximately 70.5° North and 103° East.

 

The crater is 35 kilometres wide and has a maximum depth of approximately 2 kilometres beneath the crater rim. The circular patch of bright material located at the centre of the crater is residual water ice.

 

righthttp://hypography.com/gallery/files/9/9/8/map_thumb.jpg[/img]Image Right: This map shows the unnamed impact crater in context, located on Vastitas Borealis, a broad plain that covers much of Mars's far northern latitudes, at approximately 70.5° North and 103° East.

 

lefthttp://hypography.com/gallery/files/9/9/8/white_patch_thumb.jpg[/img]This white patch is present all year round, as the temperature and pressure conditions do not favour the sublimation of water ice.

 

Image Left: Color view of an unnamed impact crater located on Vastitas Borealis, a broad plain that covers much of Mars's far northern latitudes

 

It cannot be frozen carbon dioxide since carbon dioxide ice had already disappeared from the north polar cap at the time the image was taken (late summer in the Martian northern hemisphere).

 

righthttp://hypography.com/gallery/files/9/9/8/bw_CraterIce_thumb.jpg[/img]There is a height difference of 200 metres between the crater floor and the surface of this bright material, which cannot be attributed solely to water ice.

 

Image Right: Black and white view of crater.

 

It is probably mostly due to a large dune field lying beneath this ice layer. Indeed, some of these dunes are exposed at the easternmost edge of the ice.

 

Faint traces of water ice are also visible along the rim of the crater and on the crater walls. The absence of ice along the north-west rim and walls may occur because this area receives more sunlight due to the Sun’s orientation, as highlighted in the perspective view.

 

lefthttp://hypography.com/gallery/files/9/9/8/anaglyph_thumb.jpg[/img]The colour images were processed using the HRSC nadir (vertical view) and three colour channels. The perspective views were calculated from the digital terrain model derived from the stereo channels.

 

Image Left: 3D anaglyph view of crater with water ice.

 

The 3D anaglyph images were created from the nadir channel and one of the stereo channels. Stereoscopic glasses are needed to view the 3D images Image resolution has been decreased for use on the internet.

 

Source: ESA

[infamous]

This is a significent find, we need to get a Mars Rover over to that location ASAP. This could represent the best possibility for finding life forms on the Red Planet to date.

[Boerseun]

Pretty bloody awesome, I'd say. Did anybody calculate an approximate volume for this water? I also suppose if it happened at this one crater, it might be a common occurence for high-lattitude craters?

[Southtown]

I'd like to insert a prediction made by the Hydroplate Theory here, since we've all but left for Mars already.

 

“

Spacecraft landing on a comet will find that comets, and therefore bodies bombarded by comets, such as Mars, contain loess

ª

, traces of vegetation and bacteria, and about twice the salt concentration of our oceans.”

— Dr. Walt Brown, Hydroplate

Prediction 26

[bumab]

Thats awsome. AND it looks like a big donut. Why aren't we going there soon?

[Turtle]

“

Spacecraft landing on a comet will find that comets, and therefore bodies bombarded by comets, such as Mars, contain loess

ª

 

___The loess described in this paper looks like simple frost heave to me & arguments proceed from such weak propositions as to make the theory useless beyond chance.

___I do not know what it means "we have all but left for Mars already"?

___Many thanks to ESA for providing fuel for the fire, and now some water to help put it out.