What is the bubble shape top right and what size is it?

• by Shelagh_KT

  Posted January 10, 2013 11:19 PM

• by Portyankina scientist

  Please mark it as interesting feature. It's a depression, like channels around it. Interesting that it's circular. I do not have solid info of the scale of this frame, but would estimate the feature to be is several meters across.

  Anya

  Posted January 11, 2013 2:53 AM