Mount Sharp Extended mission 1a - Page 2

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john radogno


Posts: 37

Reply: 21



PostPosted: August 3, 2016 9:47 AM 

Winston, you are right. Once you look at it one way it is hard to see it differently. But if you start by visualizing the grains of sand on the edges of the brushing and work your way in you can see that these are pits. The area that looks to some as hollow is actually a pitted section with an oblong pepple in it that when viewed inversely gives a hollow appearance.

john radogno


Posts: 37

Reply: 22



PostPosted: August 3, 2016 11:13 AM 

Some Detail:

Just a crevice or small channel with a pebble in it. Not a blood vein.

john radogno


Posts: 37

Reply: 23



PostPosted: August 3, 2016 2:32 PM 

Test

Mazebo


Posts: xxx

Reply: 24



PostPosted: August 3, 2016 3:26 PM 

Winston, John: Yes, you absolutely right - What I saw as protruding was just cracks with pebbles. That was a hard one to flip... Thanks for helping me! Smile

john radogno


Posts: 37

Reply: 25



PostPosted: August 3, 2016 6:41 PM 

Mazebo, you are welcome! As another note, the thin curly white thread like lines are scratches in the surface caused by the brushes. You can clearly how some brush lines push some sand grains aside:

The brushes not only spin, but in this case their position moved to cover more than a circle. Also note they have several different brush positions:


...and they are getting bent, worn, and scraggly:


Faceless


Posts: xxx

Reply: 26



PostPosted: August 4, 2016 10:12 AM 

Re replies 17 & 18, they are blood vessel remnants with mammalian fossilized red blood cells: [link]

LWS


Posts: xxx

Reply: 27



PostPosted: August 4, 2016 2:04 PM 

John

Re. our aug 3rd posts.
Agreed!

Mazebo;
Thanks for comments. Oh for the good old days when comments came fast and furious!

Winston.

LWS


Posts: xxx

Reply: 28



PostPosted: August 4, 2016 2:04 PM 

John

Re. our aug 3rd posts.
Agreed!

Mazebo;
Thanks for comments. Oh for the good old days when comments came fast and furious!

Winston.

Barsoomer


Posts: 344

Reply: 29



PostPosted: August 4, 2016 11:35 PM 

http://mars.nasa.gov/gamee-rover/

Mars rover game. Drive a simulated Mars rover.

john radogno


Posts: 37

Reply: 30



PostPosted: August 5, 2016 12:56 PM 

Some very interesting ground movements associated with the recent drilling.
1. Right top, a rock completely disappears.
2. Left top, ground material piles up over the edge of the main rock, a small unusual rectangular piece appears, sitting vertical over part of the rock.
3. Left lower edge, six large pebbles appear where before only two were just barely popping out of the surface. Looks like the shaking has caused these pebbles to rise to the top. Must be very loosely packed sand or dirt under the surface.
Before and After:

mauree


Posts: xxx

Reply: 31



PostPosted: August 5, 2016 4:15 PM 

John, very interesting - unusual rect rock indeed.

I find the "usual white stuff" on the bottom right after the drilling very intriguing, some sort of texture. Wish we have close up on that.


LWS


Posts: 3062

Reply: 32



PostPosted: August 5, 2016 5:50 PM 

Hi JOhn

I did an animated gif of the sol 1417 to sol 1420 transition of the drill hole.

It is absolutely similar to another drilling anim which I did last year and shows exactly the same features. See below

https://photos.smugmug.com/Other/MSL-Curiosity/i-5zqfGr4/1/O/Drill%20hole%20animation%20sol%201417-1420.gif

I think this is another confirmation that the pavement rocks are floating on a fluid layer of "debris flow" material which breaks out when the thin rock is disturbed as by drilling. The flow is sufficiently strong as to move relatively big pebbles remote from the disturbance. Note the rock at the bottom left.

john radogno


Posts: 37

Reply: 33



PostPosted: August 5, 2016 11:07 PM 

Re: Image in reply 12. Paul Hammond of CalTec measures the yellow section to be about 5mm.in diameter. It looks to me to be much larger,maybe an inch or more. Does anybody have any ideas about this?

Barsoomer


Posts: 344

Reply: 34



PostPosted: August 5, 2016 11:59 PM 

Winston (reply 32), that is very dramatic! The relatively large slab at bottom left has definitely moved, as seen by comparing it to nearby pebbles. Bravo! As you suggest, the slab must have floated on a fluidized mass due to the shaking caused by the drill.

Oh, how I wish we could have video to see the action during a drilling episode. Is there no one nearby with a cell-phone camera Wink

john radogno


Posts: 37

Reply: 35



PostPosted: August 6, 2016 2:06 PM 

This is from the bottom center of 30 & 32:

It looks like material was ejected from the space on the upper left, under the drilled rock and then spread across the rock directly below and to the right. This indicates an explosive activity. So not only does the material under the rock get pushed in a fluid like way but also it can get sprayed as well.

LWS


Posts: 3062

Reply: 36



PostPosted: August 7, 2016 8:02 AM 

John;

re your reply 33 about the size of the pale object. I got a size of approximately 8 mm for the long diameter of the object using the Curiosity motor count figure.

Winston

Paul Scott Anderson


Posts: 53

Reply: 37



PostPosted: August 8, 2016 5:58 PM 

I just noticed in this new article that NASA administrator Cassie Conley had taken an interest in the small RSL-like dark streaks seen by Curiosity. 🙂

http://www.wired.com/2016/08/shouldnt-go-mars-might-decimate-martians/

I found the image referenced, too (sol 711).

LWS


Posts: 3062

Reply: 38



PostPosted: August 8, 2016 8:46 PM 

PaulScottAnderson;

Thanks very much for the reference to the article in your reply 37.

I think that the writer should be directed to MRB to research the posts from since Opportunity and Spirit landed on Mars that championed the view that there was indeed water there and that it was evident in many of the images.

Even before the classic slope streaks from sol 712 were discussed as likely evidence of water on MRB, there were several of us that, almost on a daily basis, were trumpeting the view that water was there, now, and being pilloried for it by some unenlightened just-rock types.

But NASA has not yet got the full picture of what Curiosity has been doing that must have already changed the balance re. planetary protection. For it appears to have poo-poohed the likelihood that what I call the almost ubiquitous "debris flows" are likely carriers of water and microbial life and a number of them have been almost certainly contaminated with earthling microbial life.

They also seem not to be dealing frontally with the possibility that Martian Microbialites are common on Mars surface wherever rovers have gone, and that some of them might still be alive.

The horse is already out of the stable! They need to attack the problem frontally and not pretend that it doesn't exist.

Winston

LWS


Posts: 3062

Reply: 39



PostPosted: August 8, 2016 8:50 PM 

PaulScottAnderson;

Thanks very much for the reference to the article in your reply 37.

I think that the writer should be directed to MRB to research the posts from since Opportunity and Spirit landed on Mars that championed the view that there was indeed water there and that it was evident in many of the images.

Even before the classic slope streaks from sol 712 were discussed as likely evidence of water on MRB, there were several of us that, almost on a daily basis, were trumpeting the view that water was there, now, and being pilloried for it by some unenlightened just-rock types.

But NASA has not yet got the full picture of what Curiosity has been doing that must have already changed the balance re. planetary protection. For it appears to have poo-poohed the likelihood that what I call the almost ubiquitous "debris flows" are likely carriers of water and microbial life and a number of them have been almost certainly contaminated with earthling microbial life.

They also seem not to be dealing frontally with the possibility that Martian Microbialites are common on Mars surface wherever rovers have gone, and that some of them might still be alive.

The horse is already out of the stable! They need to attack the problem frontally and not pretend that it doesn't exist.

It is also interesting to see how history is being rewritten by the exclusion of mention of Gil Levin and his trailblazing work on the Viking Landers.

Winston

LWS


Posts: 3062

Reply: 40



PostPosted: August 8, 2016 10:41 PM 

Have a look at the images that Oppy is now sending down from sol 4457 and 4458.

Looks a lot like microbial mat textures and damp soil to me.

[link]

But I might be wrong.

Winston

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