What would cause such a stain and the nervures around it ?

• by Keupkana

  It looks like an impact or something, can a science-head explain to me the propbable cause of this stain ? Looks like a thunderbolt right ? 😄

  Posted April 27, 2015 5:26 PM

• by __ed__duplicated__mschwamb in response to Keupkana's comment.

  Dear Keupkana,

  Nicely spotted. Those are channels. They are carved into the surface of Mars by carbon dioxide gas trapped under the thawing carbon dioxide ice sheet on the south pole of Mars. You can learn more about what these features are here and here.

  Cheers,

  ~Meg

  Posted April 27, 2015 5:34 PM

• by p.titchin in response to __ed__duplicated__mschwamb's comment.

  Hi, just approaching 1500 of these hash tagged 'spiders' in my collection if you go on 'talk' and search spider images ff you hit search. Enjoy. 😃

  Posted April 27, 2015 7:37 PM

• by mschwamb scientist, translator

  odd that it came up with an ed_duplicated_mschwamb, anyway it's still me.

  Cheers,

  ~Meg

  Posted April 28, 2015 12:18 AM