File:Ancient Atlantis (19635158954).jpg

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This colourful image is a topography map of a portion of the region known as Terra Sirenum, located in the southern hemisphere of Mars. The map is colour-coded, with reds and whites representing the highest topography and blues and purples the lowest.

The images shows a myriad of terrain types including cliffs, impact craters, channels carved into steep slopes, wrinkled ridges and scarps, which together reflect a rich geological history.

Perhaps the most prominent feature is the portion of uneven chaotic terrain towards the centre of the image. This is Atlantis Chaos, a lowland plain covering around 170 km by 145 km and containing a few hundred small peaks and flat-topped hills. They are thought to result from the slow erosion of a once-continuous solid plateau.

A number of impact craters occupy the scene and span a range of ages, with the most ancient with almost undetectable rims that have eroded over time. Indeed, the outline of the giant Atlantis Basin is hard to see, but lies at the centre of the image and spans over 200 km. It is connected to another large basin located further south (left) with a diameter of 175 km.

Scientists suspect that some of the craters and basins in this area may have once contained standing water. Indeed, channels carved into the slopes of the ancient basins provide evidence for the existence of water in this region’s past.

Explore this region in more detail in a new video, published <a href="http://www.esa.int/spaceinimages/Videos/2015/07/Flight_over_Atlantis_Chaos" rel="nofollow">today</a>.

This image is a mosaic of four images taken by the Mars Express High Resolution Stereo Camera on 28 December 2008, 29 December 2008, 6 February 2009 and 5 January 2014. The image resolution is roughly 14 m per pixel. Read more about this region <a href="http://www.esa.int/spaceinimages/Images/2014/10/Chaos_in_Atlantis_basin" rel="nofollow">here</a>.

Credit: ESA/DLR/FU Berlin (CC BY-SA 3.0 IGA)
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Source Ancient Atlantis
Author European Space Agency
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This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
  • the source of the image or video is duly credited (Examples: "Credit: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0", "ESA/DLR/FU Berlin, CC BY-SA IGO 3.0", "ESA/Photographer’s name, CC BY-SA IGO 3.0"), and
  • a direct link to the CC BY-SA 3.0 IGO license text is provided, and
  • if changes were made to the original image or video, there is a clear statement on the Adaptation indicating that changes were made to the original content; Adaptations must be Distributed or Publicly Performed under the Applicable License, as set forth in Article 4b of the CC BY-SA 3.0 IGO licence.
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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This file is licensed under the Creative Commons Attribution-ShareAlike 3.0 IGO license.
Attribution: ESA/DLR/FU Berlin, CC BY-SA IGO 3.0
You are free:
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  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image was originally posted to Flickr by europeanspaceagency at https://flickr.com/photos/37472264@N04/19635158954 (archive). It was reviewed on 3 September 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

3 September 2018

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current02:27, 3 September 2018Thumbnail for version as of 02:27, 3 September 20181,920 × 850 (1.87 MB)JCPagc2015 (talk | contribs)Transferred from Flickr via #flickr2commons

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