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A banner reads "Hellas, Shopping Paradise" while three people are sitting at the end of the road. I included the people to turn the snap into a street photo
Created for : Challenge 191 Ancient Greece
Magnificent Manipulated Masterpieces
a northeastern Mediterranean civilization "Hellas"
the country was called Hellas, not Greece by its people at the time.
NIGHTCAFE generated images, modified within pixlr and blended in gimp~
Mural by Sirron Norris aka @sirronnorris, seen in the Clarion Alley at Sycamore and Valencia Streets in San Francisco, California.
Photo by James aka @urbanmuralhunter on that other photo site.
Edit by Teee.
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Scarring the southern highlands of Mars is one of the Solar System’s largest impact basins: Hellas, with a diameter of 2300 km and a depth of over 7 km.
Hellas is thought to have formed between 3.8 and 4.1 billion years ago, when a large asteroid hit the surface of Mars. Since its formation, Hellas has been subject to modification by the action of wind, ice, water and volcanic activity.
Impact craters have also since pock-marked this vast basin floor, two of which are the focus of this image, taken by the High Resolution Stereo Camera on ESA’s Mars Express on 17 December 2013. The ground resolution is about 15 metres per pixel.
These craters lie in the deepest, western portion of Hellas, and such a clear view is unusual because dust clouds typically obscure the basin floor. Indeed, this region seems to be covered by a thick blanket of dust.
The larger of the two craters is about 25 km across. A flow of material appears to have been transported from the top left of the scene and into the crater. Zooming in to the smooth mound and the area immediately around it reveals interesting textures that likely resulted from this flow.
Flow features are also seen outside of the craters, and in particular, at the centre left of the image near the top of the frame. Material also seems to have cascaded from the larger crater’s rim and into a neighbouring smaller crater, at the far left of the image.
The morphology of many features in the Hellas Basin and its surroundings strongly suggests the presence of ice and glaciers.
For example, in the foreground and around the crater rim, polygons of patterned ground are visible which indicates the presence of water – this pattern occurs when fine grained and porous wet soil freezes.
Indeed, in the deepest parts of the basin, the atmospheric pressure is about 89% higher than at the surface, which may even offer conditions suitable for water. Radar images from NASA’s Mars Reconnaissance Orbiter suggest that some craters in Hellas might contain water-ice glaciers several hundred metres thick, buried under layers of dust.
Credit: ESA/DLR/FU Berlin (G. Neukum), CC BY-SA 3.0 IGO
Copyright Notice:
This work is licenced under the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence. The user is allowed to reproduce, distribute, adapt, translate and publicly perform this publication, without explicit permission, provided that the content is accompanied by an acknowledgement that the source is credited as 'ESA/DLR/FU Berlin’, a direct link to the licence text is provided and that it is clearly indicated if changes were made to the original content. Adaptation/translation/derivatives must be distributed under the same licence terms as this publication. To view a copy of this license, please visit creativecommons.org/licenses/by-sa/3.0/igo/
Credit: ESA/DLR/FU Berlin (G. Neukum), CC BY-SA 3.0 IGO
Copyright Notice:
This work is licenced under the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence. The user is allowed to reproduce, distribute, adapt, translate and publicly perform this publication, without explicit permission, provided that the content is accompanied by an acknowledgement that the source is credited as 'ESA/DLR/FU Berlin’, a direct link to the licence text is provided and that it is clearly indicated if changes were made to the original content. Adaptation/translation/derivatives must be distributed under the same licence terms as this publication. To view a copy of this license, please visit creativecommons.org/licenses/by-sa/3.0/igo/
Colour-coded topography map of the Hellas Chaos region found in the Hellas Basin in the southern hemisphere of Mars. White and red show the highest terrains, while blue and purple show the deepest.
This region was imaged by the High Resolution StereoCamera on ESA’s Mars Express on 23 January 2014 during orbit 12 785. The image is centred on 46ºS / 69ºE and has a ground resolution of about 18 m per pixel. North is to the right and west is at the top.
Read more: www.esa.int/Our_Activities/Space_Science/Mars_Express/Fro...
Credit: ESA/DLR/FU Berlin (G. Neukum), CC BY-SA 3.0 IGO
Copyright Notice:
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Scarring the southern highlands of Mars is one of the Solar System’s largest impact basins: Hellas, with a diameter of 2300 km and a depth of over 7 km.
Hellas is thought to have formed between 3.8 and 4.1 billion years ago, when a large asteroid hit the surface of Mars. Since its formation, Hellas has been subject to modification by the action of wind, ice, water and volcanic activity.
Impact craters have also since pock-marked this vast basin floor, two of which are the focus of this image, taken by the High Resolution Stereo Camera on ESA’s Mars Express on 17 December 2013. The ground resolution is about 15 metres per pixel.
These craters lie in the deepest, western portion of Hellas, and such a clear view is unusual because dust clouds typically obscure the basin floor. Indeed, this region seems to be covered by a thick blanket of dust.
The larger of the two craters is about 25 km across. A flow of material appears to have been transported from the top left of the scene and into the crater. Zooming in to the smooth mound and the area immediately around it reveals interesting textures that likely resulted from this flow.
Flow features are also seen outside of the craters, and in particular, at the centre left of the image near the top of the frame. Material also seems to have cascaded from the larger crater’s rim and into a neighbouring smaller crater, at the far left of the image.
The morphology of many features in the Hellas Basin and its surroundings strongly suggests the presence of ice and glaciers.
For example, in the foreground and around the crater rim, polygons of patterned ground are visible which indicates the presence of water – this pattern occurs when fine grained and porous wet soil freezes.
Indeed, in the deepest parts of the basin, the atmospheric pressure is about 89% higher than at the surface, which may even offer conditions suitable for water. Radar images from NASA’s Mars Reconnaissance Orbiter suggest that some craters in Hellas might contain water-ice glaciers several hundred metres thick, buried under layers of dust.
Credit: ESA/DLR/FU Berlin (G. Neukum), CC BY-SA 3.0 IGO
Copyright Notice:
This work is licenced under the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence. The user is allowed to reproduce, distribute, adapt, translate and publicly perform this publication, without explicit permission, provided that the content is accompanied by an acknowledgement that the source is credited as 'ESA/DLR/FU Berlin’, a direct link to the licence text is provided and that it is clearly indicated if changes were made to the original content. Adaptation/translation/derivatives must be distributed under the same licence terms as this publication. To view a copy of this license, please visit creativecommons.org/licenses/by-sa/3.0/igo/