Golf Ball Crater, A Geodesic Dome on Mars?

It is an interesting comparison, but you can tell by looking closely at the original pictures that the "structure" doesn't have equal sized "segments", and the "segments" don't follow a geodesic pattern. Close, but no cigar.

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by toothdust</i>
<br />It is an interesting comparison, but you can tell by looking closely at the original pictures that the "structure" doesn't have equal sized "segments", and the "segments" don't follow a geodesic pattern. Close, but no cigar.
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Precisely, although I thought I implied that--more or less. Anyway, here's another tube close-up (from PSP 006269 1995)that I can only describe as crystaline (originally posted by Joe I think). Looks like the inside of a freezer when the defroster is broken, or the inside of an old icebox before they invented defrosters.

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by neilderosa</i>
<br /><blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by toothdust</i>
<br />It is an interesting comparison, but you can tell by looking closely at the original pictures that the "structure" doesn't have equal sized "segments", and the "segments" don't follow a geodesic pattern. Close, but no cigar.
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Precisely, although I thought I implied that--more or less. Anyway, here's another tube close-up (from PSP 006269 1995)that I can only describe as crystaline (originally posted by Joe I think). Looks like the inside of a freezer when the defroster is broken, or the inside of an old icebox before they invented defrosters.







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<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">The new hi-res image reinforces my belief that the artificial tube theory is now falsified. We also now see that the dome seems to be similar to the tubes in certain ways. One speculation I've had is that when Mars lost a large part of its atmosphere, perhaps remaining flowing or standing water or slurry was "freeze dried," thus accounting for the crystalline aspect of the tubes and dome surfaces.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

As TD points out, (re: tubes and the dome) the segments are not even and not geodesic. I agree. They both seem natural and not artificial and both seem to be forms of ice, whether water ice or not I couldnt say.

What we see is they both have high albedo, both seem to have a variegated crystal structure, both are found in places where water could have existed such as gullies, dry river beds and inside craters. Plus there is no dirt on them (rocks, regolith, sand) such as is found on most hills, outcroppings, or mesas. Nor is there any apparent erosion from being hit by micro-meteoroids as is often seen on both natural objects and artifacts.

One possible experiment would be to observe them at different seasons to see if they shrink during warm seasons and expand during cold seasons.

Here is another tube in RGB color (from PSP 008641 2105).