Circular feature at Mars South Pole

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brellis

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uhm, could it be a huge RAT? <img src="/images/icons/tongue.gif" /> j/k, but the outer part looks swept. <br /><br />Edit: is it a collapsed crater? <div class="Discussion_UserSignature"> <p><font size="2" color="#ff0000"><em><strong>I'm a recovering optimist - things could be better.</strong></em></font> </p> </div>
 
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h2ouniverse

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Hi Brad,<br /><br />In the caption on SDC, they envisage collapse but say "the image is missing the typical ground fractures that form around a collapse pit"...
 
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ashish27

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Well, the feature may be a crater, a dried lake, or a sand dune. Or it can be anything that scientists don't know yet.<br /><br />OR it could be the face-shaped alien spacecraft as shown in Mission to Mars <img src="/images/icons/tongue.gif" /><br /><br />(j/k)
 
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brellis

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such a perfect circle, that's gotta be an impact crater, or else some aliens drilled a 2.5 mile RAT hole into Mars with their 50sq mile rover! hehe<br /><br />It's such fun learning piece to the puzzle of Mars - Spirit stirred up proof of bound water with its stuck wheel, the orbiters are picking up signatures of wet stuff beneath the surface, and some mysterious process makes this weird circle at the south pole. Are the clues connected? <div class="Discussion_UserSignature"> <p><font size="2" color="#ff0000"><em><strong>I'm a recovering optimist - things could be better.</strong></em></font> </p> </div>
 
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h2ouniverse

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In reply to<br />----<br />" Spirit stirred up proof of bound water with its stuck wheel, the orbiters are picking up signatures of wet stuff beneath the surface, and some mysterious process makes this weird circle at the south pole. Are the clues connected? "<br />----------<br /><br />Yes Brad, your conundrum is easy.<br />"The circle leads to the water" would have been the unifying enigma.<br />(the circle of Spirit's wheel, of the orbit, of the polar feature).
 
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ashish27

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hmmn, conundrum! nice word <img src="/images/icons/laugh.gif" /><br />
 
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h2ouniverse

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would you have preferred trivandrum? <img src="/images/icons/smile.gif" />
 
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h2ouniverse

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I can understand this is compulsory for Indians (is this the same btw in Hindi , Urdu or Tamil?). But are we foreigners obliged to bend? Towns are usually called in different ways here in Europe (Paris is Parijs for the Dutch, Parigi for the Italians). And I would guess my pronunciation of Tiruvanthapuram would be probably more an offence than my pathetic English one...
 
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franontanaya

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Already photographed by MRO. As far as I can tell, it's a cryocone surrounded of CO2 ice sublimating over a sheet of water ice.<br /><br />See this post with a better image crop. <div class="Discussion_UserSignature"> </div>
 
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h2ouniverse

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nice view. Thanks. Sorry I was in a black hole at the time of your september post.<br /><br />a cone toppled with Mars ice: looks like a junk food ad!<img src="/images/icons/tongue.gif" />
 
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ashish27

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<blockquote><font class="small">In reply to:</font><hr /><p> I can understand this is compulsory for Indians (is this the same btw in Hindi , Urdu or Tamil?). But are we foreigners obliged to bend? Towns are usually called in different ways here in Europe (Paris is Parijs for the Dutch, Parigi for the Italians). And I would guess my pronunciation of Tiruvanthapuram would be probably more an offence than my pathetic English one... <p><hr /></p></p></blockquote><br /><br />haha <img src="/images/icons/laugh.gif" /> no, the current name of the city is same in all Indian languages. And that is actually one of the reason for changing names. Earlier the official name used to be the English names of the city like Bombay, Calcutta, Madrass which was different from what the name was in Indian languages. So politicians decided to Indianise the whole thing. Bombay was renamed Mumbai, Calcutta changed to Kolkata, Madrass to Chennai, Cochin to Kochi, Trivandrum to Tiruvanthapuram, Baroda to Vadodra and the most recent and most shocking is Bangalore now officially is Bengaluru.<br /><br />It is very confusing for foreigners. Not your fault. One american friend asked me "can you tell how far is Kolkata from Calcutta?" <img src="/images/icons/laugh.gif" /> . She was shocked when I said Kolkata & Calcutta is essentially the same thing <img src="/images/icons/laugh.gif" />
 
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h2ouniverse

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I was aware of the change but just for Kolkata, Mumbai and Chennai.<br />The situation here in Europe is simpler: as this is a giant mess, everyone does what he wants with other countries city names. At one kilometer of the border, you will see Vintimille or Genes indicated on one side, and Nizza and Marsiglia on the other. Just guess which cities hide behind Genf, Rijsel, Venedig, Douvres, Monaco, Burdeos, Aix-la-Chapelle, La Haye, Helsingfors, Inbhir Nes, Baile Atha Cliath.<br /><br />I already visited Londres and Edimbourg. I hope to be able to visit Pondichery one day...<br />Many different foreign names for a city are the best tribute to its shining.<br /><br />Btw to come back to space, what is the name of TNO Varuna in India (as word Varuna is already taken to designate Neptune afaik)?
 
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silylene old

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The names of countires even don't line up with the English names, or with names in the variety other languages. I never understood why India is insisting on changing the English placenames, or why Burma wants to be called Myamar in English, or Ceylan wants to be called Sri Lanka in English. It is confusing and silly. In Europe, there is very often no correspondance between languages, as H2OUniverse stated, and no one really cares.<br /><br />Here are just a few examples, and this is just comparing English to native language. There are many more discrepencies if you consider all the other languages also in use in Europe:<br /><br />English - Hungary<br />Hungarian - Magyarország<br /><br />English - Egypt<br />Egyptian Arabic - MaÅŸr<br /><br />English - Finland<br />Finnish - Suomi<br /><br />English - Germany<br />German - Deutschland<br /><br />English - Greece<br />Greek - Ellás<br /><br /> <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>
 
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MeteorWayne

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We are WAAAAAAAAAAAAYYYYYYYYYYYYY off topic here guys. <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>
 
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telfrow

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Yes, we are. Can we get back on topic? <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>
 
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ashish27

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haha, <img src="/images/icons/laugh.gif" /> i know we are off topic, and thats fun. Strictly being on the topic seems more like a classroom discussion.<br /><br />Okay Joel from where did you hear Neptune is Varuna? As far as i know Uranus, Neptune & Pluto have no Indian names and certainly not Eris.<br />The TNO Varuna i don't think needs any indian name, its already indianised! Here is what we call the solar system objects in India<br /><br />Sun= Surya<br />Mercury= Budha<br />Venus= Shukra<br />Earth= Prithvi<br />Moon= Chandra<br />Mars= Mangal<br />Jupiter= Brihaspati<br />Saturn= Shani<br />And then there are the mythical Rahu and Ketu<br />See this link: http://en.wikipedia.org/wiki/Navagraha<br /><br />There are no names for asteroids/KBOs, may be i don't know, perhaps alokmohan may know<br /><br />Interstingly for astrologers Satrun is the most evil planet and Jupiter most sacred! <br />
 
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dragon04

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I'm inclined to believe that it's an impact crater. <br /><br />One might be inclined to ponder just how the heck a "perfect" crater could be made at the south pole of Mars considering that it would require an impact from an object with a trajectory a significant percentage towards 90 degress from the ecliptic.<br /><br />However, we know that due to the lack of a massive Moon that Mars doesn't spin on a relatively stable axis compared with the Earth.<br /><br />IOW, the "south pole" of Mars was at one time in line <b>with</b> the ecliptic and that was likely when the impact occurred.<br /><br /> <div class="Discussion_UserSignature"> <em>"2012.. Year of the Dragon!! Get on the Dragon Wagon!".</em> </div>
 
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telfrow

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<font color="yellow">ashish27</font><br /><br />My request that you stay on topic should be viewed as an instruction from a moderator. <br /><br />Friendly advice: you should <b>not</b> ignore moderator instructions.<br /><br /><br /> <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>
 
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R1

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H20universe, actually your link is out ouf topic itself,<br />I was looking for a circular pattern on Mars, and I got a remnant explosion thousands of light years away instead,<br /><br />is there a way you can edit or provide an updated link? <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> </div>
 
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