File:Portal to the Underworld? (2989621208).jpg

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Even with the sun high in the sky, this collapse pit on a Martian lava plain is so deep that even the super-sensitive Mars Reconnaissance Orbiter cannot see the bottom. On Earth, openings like this one often lead to extensive cave networks, and on Mars, such a place could shelter life, or even future astronauts.

Sent by: Mars Reconnaissance Orbiter | From: Mars | Sent: Oct, 2008 | Credit: NASA/JPL/UA

Added to www.ridingwithrobots.org Oct 31, 2008.
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Source Portal to the Underworld?
Author RidingWithRobots

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: NASA/JPL/UA
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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.
This image was originally posted to Flickr by ridingwithrobots at https://flickr.com/photos/22592003@N05/2989621208. It was reviewed on 14 December 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0.

14 December 2020

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Date/TimeThumbnailDimensionsUserComment
current15:18, 14 December 2020Thumbnail for version as of 15:18, 14 December 2020800 × 754 (281 KB)Eyes Roger (talk | contribs)Transferred from Flickr via #flickr2commons

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