new images of Phobos released

The European Space Agency (ESA) just released some great pictures of Mars’ larger moon Phobos taken by Mars Express over the last few months.  From the image linked at the bottom of this post, the snaking line of “dents” from the large crater in the upper center down to the dark crater in the lower left is most intriguing.  Surely the curving of this line can’t be an optical illusion caused by the hills and valleys on the moon?  Because I would think that secondary ejecta resulting from the larger Stickney crater (not seen in this new image) would radiate linearly outward from the larger crater?  Or perhaps these are sinkholes exposing a huge crack in the moon itself, possibly caused by the Stickney impact?  I’m no expert on the subject, but wow, what a visually fascinating moon!

north pole of Phobos from Mars Express

north pole of Phobos from Mars Express

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