I don't think the scratching noise is an interference ... If this were the case as soon as the rover stops it should disappear, instead you hear it oscillate, slow down and then stop (at about 12:24). In my opinion it is a noise that comes from the suspension.

It is wonderful to talk about this...

Thanks to the perseverance team

Yes, in 2018 Curiosity found many organic molecules in a mudstone! If these strata turned out to be truly shale we could get much more information so that we can better study the geological context.
NASA 2018 announcement

I can't wait for Perseverance to approach the remains of the delta with the new instruments!

These dark layers remind me of those of flint between the limestone layers in the Gargano, in Italy.



EDIT: I add the original Martian image with an aggressive white correction for comparison.

I add, moreover that it could resemble layers of limestone and shale...

It reminds me of someone ...

An attempt to add colors ...

My first analysis highlighted three possible craters...

A first processing between the best image released in black and white and color...
It seems to see a crater in the lower left corner on the lobe Ultima!!

FANTASTIC!

Edit: Image V2

Bennu is really very small compared to Ryugu, it's as big as Itokawa ... but why doesn't Itokwa have the same shape?

In this September publication there have been many new ROLIS images ever seen and analyzed before

https://arxiv.org/pdf/1701.00685.pdf

Roman congratulations! A crazy image! What is the resolution of this image? Is Beats images of Voyager and Galileo? I have never seen cloudy structures so clear on Jupiter!

But those white dots are snowflakes / wads of aerosols?
There are official publications?

https://media.giphy.com/media/l3vRiIZ1ufSeaHhxS/source.gif

Analyzing this Titan photos of Voyager 1 shows a hood ... it is to the north or the south pole?

Roman Congratulations! A resolution masterpiece! I love your elaboration, is much better than the NASA's official ones!

Why do not you make a version with natural colors?

Inspired by the work of Roman Tkachenko I made this photo where I compare the size and details of the various photos in high resolution taken during the Rosetta-Philae mission. As we can see the latest pictures of Rosetta it is much closer to those taken by philae landed it during the descent ....

Another attempt to "explore" the surroundings of Philae ... this time with the eyes ROLIS!

Here is my small contribution to the identification of the details of your photos CIVA in photos taken by Rosetta in orbit!

Edit- I consider that philae can be slightly moved after the rotation of the "head" of 35 ° carried to term of his mission

I confirm, the legs are rotated 15-20 degrees to the observer .... probably a result of the commands sent to try to get a better orientation.
this will make it a little more difficult to draw a precise map of the areas immediately close to philae

I think this explanation is one of the most consistent ...

Here is the cylindrical projection, this one in particular has been developed for a mod of Space Engine.

Looking at the new map of Titan released in June 2015, I realized that, although true to 100% with the scientific data, with regard to the 'artistic aspect was not great ... I have worked to make it less visible lines of contact of mosaic, I tried to give a "realistic" color, but above all, to use the radar data to improve the resolution of the lakes and seas to the north pole.

Titan Map 2015 by Francesco Maio, su Flickr

how many chances Galileo Galilei had to see Neptune, while he was in conjunction with Jupiter? Everything is possible ... then its proximity to Alpha Centauri would have masked WISE ... we can not rule anything!