Mount Sharp Extended mission 1a - Page 6

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Author Message
John Radogno


Posts: xxx

Reply: 101



PostPosted: December 15, 2016 5:11 PM 

Nasa seams to be interested in these greenish knobs setting on top of the light colored veins. Mineral growth or something else?

Barsoomer


Posts: 344

Reply: 102



PostPosted: December 16, 2016 1:02 AM 

https://agu.confex.com/agu/fm16/meetingapp.cgi/Paper/136205

Organics in Gale Crater detected by SAM instrument.. (Invited talk)

Barsoomer


Posts: 344

Reply: 103



PostPosted: December 16, 2016 2:06 AM 

JPL News Release

Paul Scott Anderson


Posts: 53

Reply: 104



PostPosted: December 16, 2016 2:50 AM 

P23B-2170: Low Background Levels of Mars Methane at Gale Crater Indicate Seasonal Cycle: Updated Results from TLS-SAM on Curiosity

https://agu.confex.com/agu/fm16/meetingapp.cgi/Paper/143915

LWS


Posts: xxx

Reply: 105



PostPosted: December 21, 2016 10:59 PM 

Here's some nice polygons from sol 1555.

Isn't there some connection between polygons and life?

Winston

LWS


Posts: xxx

Reply: 106



PostPosted: December 21, 2016 11:33 PM 

Re. the polygons, google relationships between microbes and polygons images.

Some google images show a close visual resemblance of the Curi sol 1553 and 1555 images to current and fossil microbial mats in the Arctic.

Winston

edi


Posts: xxx

Reply: 107



PostPosted: December 22, 2016 11:11 AM 

I don't see how that is not a fossilized Algae or Microbial mat but then again who knows.,,its mars.

I have never seen that formation naturally occuring. You can actually go to a dried lake or Ocean and see things like and if you dig. Yup...its all over.

LWS


Posts: xxx

Reply: 108



PostPosted: December 22, 2016 11:28 AM 

Edi;

Thanks for your observation!

Winston

Paul Scott Anderson


Posts: 53

Reply: 109



PostPosted: December 22, 2016 11:33 PM 

Winston,

I thought these two were interesting:


"Polygons, microbes, pigmentation and nodules"

http://etgblog.honeybeerobotics.com/page/2/


"Several Microbially-Induced Sedimentary Structures (MISS) were identified in the supratidal zone such as shrinkage cracks, erosional pockets, gas domes, photosynthetic domes, mat chips and sieve-like surfaces."

http://file.scirp.org/Html/8-2800419_29337.htm

LWS


Posts: xxx

Reply: 110



PostPosted: December 24, 2016 7:00 PM 

Paul Scott Anderson

Thanks!

Winston

LWS


Posts: xxx

Reply: 111



PostPosted: January 1, 2017 8:57 PM 

Here's a sol 1566 X-eyed 3D of small polygons mainly bounded by raised veins.

Winston

edi


Posts: xxx

Reply: 112



PostPosted: January 2, 2017 3:45 PM 

Once again...go to a dry lake bed. That sort of formation is fossilized leads and algae

Faceless


Posts: xxx

Reply: 113



PostPosted: January 3, 2017 7:34 AM 

Blood vessel remnants in Sol 1566 image:
https://www.flickr.com/photos/fossil_lin/32075105065/in/dateposted-public/

Paul Scott Anderson


Posts: 53

Reply: 114



PostPosted: January 18, 2017 2:34 AM 

NASA update about the mud cracks:

https://www.nasa.gov/feature/jpl/mars-rover-curiosity-examines-possible-mud-cracks

mauree


Posts: xxx

Reply: 115



PostPosted: January 18, 2017 8:13 AM 

Question regarding #114 and in general: how does NASA determine the age of things by looking at them?

In the article it is mentioned the mud cracks are 3B years old.

John Radogno


Posts: xxx

Reply: 116



PostPosted: January 18, 2017 5:05 PM 

There are several ways of aging planetary surfaces, the most basic being a crater count. Curiosity has been able to corroborate earlier aging estimates by chemically measuring mineral isotopic decay. This is just part of the story:
www.jpl.nasa.gov/news/news.php?release=2013-356

When looking at unusual surfaces as we do, it is easy to succumb to the Necker's Box confusion where we perceive an inverted view of a topographical image making small valleys look like small bumps:

Lines of small cracks can look like spidery threads or even blood vessels to some (but they are not!) and small pockets with filled with dust can look like small knobs covered with fuzzy, biological material. This is not to say that we haven't seen hundreds of odd looking surfaces that are actually fossilized microbial mats or even more complex remnants of pst of current life. We just do not have the right equipment on the ground to definitively identify these things.

LWS


Posts: xxx

Reply: 117



PostPosted: January 26, 2017 7:41 PM 

Here's a stitched landscape view from 4 sol 1589 Mastcam images; The colours have been enhanced to show ranges not seen in the official Curi images.



Winston

Faceless


Posts: xxx

Reply: 118



PostPosted: February 23, 2017 1:10 AM 

Artificial blocks found on Mars?:
[link]

Barsoomer


Posts: 344

Reply: 119



PostPosted: April 24, 2017 10:03 PM 

I hope Winston is ok.
He hasn't posted for a while.

LWS


Posts: xxx

Reply: 120



PostPosted: April 25, 2017 5:53 PM 

Hi Barsoomer;

Thanks for the expression of concern!

I'm Ok, Just busy with some other matters and haven't found the time to contribute.

I check in occasionally but not on the daily basis I used to do.

Winston

Winston

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