Images of Mars

[thechemist]

Hi Swampcat, I have been extremely busy at work this week, so I was plainly lucky today, no problemo !<br />Razorback and the dunes are things to look for as science results accumulate from Oppy. There seem to be chunks of the hard material forming the razorback allover the place in the image 2 posts above. Some of them are maybe flat enough to get their spectra.<br />The dunes ! Apart from their sheer shiny beauty, they might give useful science also. I'm sure of it. <div class="Discussion_UserSignature"> <em>I feel better than James Brown.</em> </div>

 

[Swampcat]

<font color="yellow">"There seem to be chunks of the hard material forming the razorback allover the place in the image 2 posts above."</font><br /><br />Yeah, seems like Mars is quite a crusty place. There is some discussion over in M&L about the dunes possibly being crusted over. Perhaps Oppy will try a little "dune buggying" across them <img src="/images/icons/smile.gif" />.<br /><br />Anyway, I did a little processing on that Razorback image and came up with this: <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>

 

[rlb2]

Here is a partial pan in the pit at Endurance crater. Being limited to 100 k sure restricts the image <br />size and clarity. <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[abq_farside]

It looks kind of like a trough the way the 2 sides look fairly straight like something used to between the 2 sides.<br /> <br />How wide of area are we looking at, maybe a total width of a few feet, or is it much smaller than that? <br /><br />Edit: Referring to image called Razorback <div class="Discussion_UserSignature"> <p> </p><p><em><font size="1" color="#000080">Don't let who you are keep you from becoming who you want to be!</font></em></p> </div>

 

[rlb2]

Here is something I colorized on Dunes using the B&W Image from todays article in space.com at:<br /><br />http://www.space.com/scienceastronomy/mystery_monday_031110.html<br /><br />Dunes<br /><br /><br /> <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[rlb2]

Dunes 2 <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[Swampcat]

This is a really neat image of Oppy's path into Endurance with the wheel tracks and RAT holes. Notice the color changes in the rock layers. <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>

 

[thechemist]

abq_farside,<br />the total width of the "trough" should not exceed 5-10 cm, so it is a lot smaller than it looks <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <em>I feel better than James Brown.</em> </div>

 

[abq_farside]

I would not have guessed that the wheels would have made such noticable tracks going down the crater in what looked like from the top very hard rocks. <div class="Discussion_UserSignature"> <p> </p><p><em><font size="1" color="#000080">Don't let who you are keep you from becoming who you want to be!</font></em></p> </div>

 

[rlb2]

Crop circles, partial enhanced image taken from today’s image release by <br /><br />http://www.spaceref.com/news/viewpr.html?pid=14657<br /><br />It looks like a dried up layered lake bottom.<br /><br />What caused this circular wave feature, water erosion, seismic activity, or when it was formed by a meteorite impact it sent shock waves outwards and buried the original crater in muck. <br /><br />I will soon be posted an enhanced version of this full image with some other images on my website. <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[Swampcat]

A Spirit hillside panorama: <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>

 

[JonClarke]

Image processing artefacts? <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em>  Arthur Clarke</p> </div>

 

[Swampcat]

<font color="yellow">"What caused this circular wave feature..."</font><br /><br />Moiré patterns<br /><br /><blockquote><p align="left"><font color="orange">When you photograph a subject that features a regular pattern of stitching or weaving, a strange pattern of stripes unrelated to the original pattern in the subject may appear in the shot. This is referred to as a moiré pattern. (Colors may also appear in the pattern.)<br />A moiré pattern is a 2-dimensional "beat" captured by the camera as a result of the interaction between the regular pattern on the subject and the regular pattern of the CCD pickup element in the camera.</font>/p></p></blockquote><br /><br />IOW, as JonClarke said "Image processing artefacts." <div class="Discussion_UserSignature"> <font size="3" color="#ff9900"><p><font size="1" color="#993300"><strong><em>------------------------------------------------------------------- </em></strong></font></p><p><font size="1" color="#993300"><strong><em>"I hold it that a little rebellion now and then is a good thing, and as necessary in the political world as storms in the physical. Unsuccessful rebellions, indeed, generally establish the encroachments on the rights of the people which have produced them. An observation of this truth should render honest republican governors so mild in their punishment of rebellions as not to discourage them too much. It is a medicine necessary for the sound health of government."</em></strong></font></p><p><font size="1" color="#993300"><strong>Thomas Jefferson</strong></font></p></font> </div>

 

[thechemist]

Spirit looking back down the hill (L456). original <div class="Discussion_UserSignature"> <em>I feel better than James Brown.</em> </div>

 

[thechemist]

Nice rocks, if you can dig them <img src="/images/icons/smile.gif" /> original <div class="Discussion_UserSignature"> <em>I feel better than James Brown.</em> </div>

 

[rlb2]

Not quite sure what it is Jon. I thought I saw a similar erosion pattern on Earth in one of our local deserts, Utah and South Africa, that kind of fits this image. I haven't located a aero-rasper image of it at this time, still looking. Another reason to why I didn't think it was an artefact was that it wasn't an unprocessed raw image we are looking at, it was an approved colorized image released by EAS.<br /><br /><font color="yellow">These images of ‘yardangs’, features sculpted by wind-blown sand seen here near Olympus Mons on Mars, were obtained by the High Resolution Stereo Camera (HRSC) on board the ESA Mars Express spacecraft. <br /><br />This image was taken during orbit 143 with a resolution of 20 metres per pixel. This scene shows a structure south of Olympus Mons at 6° N latitude and 220° E longitude, which was probably formed by the action of the wind.<br /><br /><br />http://www.spaceref.com/news/viewpr.html?pid=14657<br /><br /><font color="white">At first I thought it was a artefact until I looked at it closer and saw that the ridges in this image has the bands wrapping around them. If it was an artifact then the curved lines wouldn't be interrupted by the ridges.<br /><br />Here is an upclose image of it.</font></font> <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[silylene old]

I agree, it would be an odd looking processing artifact. I wish we had more information. <div class="Discussion_UserSignature"> <div class="Discussion_UserSignature" align="center"><em><font color="#0000ff">- - - - - - - - - - - - - - - - - - - - - -</font></em> </div><div class="Discussion_UserSignature" align="center"><font color="#0000ff"><em>I really, really, really miss the "first unread post" function.</em></font> </div> </div>

 

[JonClarke]

I see what you mean about the pattern being interrupted by roughs. Some lines also seem to go along the side of the yardangs also.<br /><br />If it is not an artefact then I would go for multiple thin layers, perhaps with low amplitude egg carton (dome and basin) folding to produce the circles, that have been dissected by erosion. Most interesting.<br /><br />Jon<br /><br /> <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em>  Arthur Clarke</p> </div>

 

[thechemist]

A false color L256 RGB composite image of the Endurance dunes. Smooth is the word. ( Originals ). <div class="Discussion_UserSignature"> <em>I feel better than James Brown.</em> </div>

 

[fortytwo]

According to the site FujiFilm that Swampcat gave about moiré:<br />http://home.fujifilm.com/products/digital/shooting/moire.html<br />========================<br />When you photograph a subject that features a regular pattern of stitching or weaving, a strange pattern of stripes unrelated to the original pattern in the subject may appear in the shot.<br />========================<br />The pattern in the image isn't "Regular", but very erratic. Are the lines in any other images? Nice link find Swampcat.

 

[telfrow]

Fantastic photo...thanks. <br /><br />I think I have a new favorite image. <div class="Discussion_UserSignature"> <strong><font color="#3366ff">Made weak by time and fate, but strong in will to strive, to seek, to find and not to yeild.</font> - <font color="#3366ff"><em>Tennyson</em></font></strong> </div>

 

[abq_farside]

I have always thought the demarcation between the crater floor and dune was very interesting.<br /><br />This sure does enhance it. Thanks. <div class="Discussion_UserSignature"> <p> </p><p><em><font size="1" color="#000080">Don't let who you are keep you from becoming who you want to be!</font></em></p> </div>

 

[rlb2]

<font color="orange">I agree, it would be an odd looking processing artifact. I wish we had more information.<font color="white"><br /><br />Sure gets your imagination fired up doesn't it. I would guess that if they take more than one image of this region and find the same effect that there may be some forces associated with the volcano that caused this terrain pattern. <br /><br />My thoughts focuses on several different ideas that this may happen, one is sink-hole like effect, cave in from some underground lava tubes. Another one may be a bulging and then receding lava mound, trying to find another easy alternative rout out of the top. Then there is the seismic activity that is around volcanic eruptions. Mt Saint Helen had hundreds of them before it finally blew. There also a few other wild ideas such as mudflows etc...<br /></font></font> <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[rlb2]

<font color="orange">I see what you mean about the pattern being interrupted by roughs. Some lines also seem to go along the side of the yardangs also. <br /><br />If it is not an artefact then I would go for multiple thin layers, perhaps with low amplitude egg carton (dome and basin) folding to produce the circles, that have been dissected by erosion. Most interesting.<font color="white"><br /><br />That’s another good assumption. A dome could easily be made by internal volcanic pressures.<br /></font></font> <div class="Discussion_UserSignature"> Ron Bennett </div>

 

[rlb2]

Top of the Hill <div class="Discussion_UserSignature"> Ron Bennett </div>