The Start of the Drive East, Up to Cambridge Bay |
The Start of the Drive East, Up to Cambridge Bay |
Jun 1 2010, 04:36 PM
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Senior Member Group: Members Posts: 4256 Joined: 17-January 05 Member No.: 152 |
I think there are a number of reasons to start a new thread. Squyres has confirmed we have turned east. We've passed the solstice and sunlight is now improving. Also we should be past the worst of the dunes now.
And, we've finally gotten new pics down! And for the first time I can recall, the jpl site has beaten exploratorium! Here are the lookbacks after the 2252 and 2254 drives: http://marsrovers.jpl.nasa.gov/gallery/all...KCP1795R0M1.JPG http://marsrovers.jpl.nasa.gov/gallery/all...NDP1777R0M1.JPG For those who don't know, the jpl site is one sol out of synch. You should add one sol to those numbers (2252 and 2254) to get the actual sols. There was a new drive on sol 2256: http://marsrovers.jpl.nasa.gov/gallery/all...Q8P1212R0M1.JPG |
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Jun 1 2010, 05:13 PM
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Member Group: Members Posts: 146 Joined: 31-October 08 Member No.: 4473 |
In regards to the discussion in the previous thread concerning the "geo"morphology of the benches around the Endeavour crater rim hills, this is one case where many possible explanations will be resolved [maybe] by the ground-truth of rover examination.
My personal working idea is that there were periods characterized by seasonal ice cover, which would be sometimes mobilized by bottom-ice-surface melting/brine-ing, which led to the ramp erosion seen in Victoria. On a larger scale, that could lead to some features seen on the Endeavour rim, which have some glacial-looking aspects (thinner ice, in the scenario I'm thinking of). They could be evaporite or wave benches, too, but the situation remains murky (and mostly below freezing, too). We will also be descending from the rise we have been traveling on into darker-looking stuff, which may be the darker sediments seen a few feet down the the craters examined. One wonders if the pavement will be quantitatively different there. Looking forward to the unknown... |
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