Phoenix Mars Lander Extended Mission. Sol 90+ & R.I.P Sol 157.

JonClarke · Sep 22, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Fascinating stuff efron!Thanx It might snow here in NJ in September... ESA has released some results!! j/k Wayne Posted by MeteorWayne</DIV>Why is it that every time there is a story on the MEx site people don't talk about it, but just whinge?  All MEx data is released 6 months after is is obtained.  It is publically available online.  There are publications of research results monthly.  But to people talk about  it? No, they just whine.This is a Phoenix thread.  There is a brief disgression to talk about the martian south pole, based on .a forthcoming MEx paper.  But no opportunity is too fleeting to put to boot into ESA.  Sorry to come down on you Wayne but this ingrained and widespread anti ESA attitude really pisses me off.  It is just prejudice, pure and simple.Jon <div class="Discussion_UserSignature"> 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 Arthur Clarke </div>

baulten · Sep 22, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>More news about the South Pole on Mars http://www.esa.int/SPECIALS/Mars_Express/SEMO78Q4KKF_0.html Posted by efron_24</DIV> So it DOES snow on Mars.  I wonder if it can snow CO2 at the North Pole... <img src="http://sitelife.space.com/ver1.0/content/scripts/tinymce/plugins/emotions/images/smiley-undecided.gif" border="0" alt="Undecided" title="Undecided" />

JonClarke · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>So it DOES snow on Mars.  I wonder if it can snow CO2 at the North Pole... Posted by baulten</DIV>Yes it does indeed snow on Mars!  We might even see some before Phoenix shuts down.  I hope so.Incidently,some parts of the Antarctic Pleateau do get cold enough for CO2 snow here on Earth.  But it is not notibable, as far as I know because of the water snow.Jon <div class="Discussion_UserSignature"> 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 Arthur Clarke </div>

3488 · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Yes it does indeed snow on Mars!  We might even see some before Phoenix shuts down.  I hope so.Incidently,some parts of the Antarctic Pleateau do get cold enough for CO2 snow here on Earth.  But it is not notibable, as far as I know because of the water snow.Jon Posted by jonclarke</DIV>Thanks Jon,I was going to ask that very question. I was aware that in the High Plateau of Antarctica, it is cold enough for CO2 snow, but did not know if it actually happened due to the low quantities of CO2 in our atmosphere.Hi all,Phoenix Stereo Surface Imager (SSI) as seen by the Robotic Arm Camera. First time we've seen this during the mission. The original images were very dark, so I have contrast enhanced, cropped, enlarged & brightened them. <img src="http://sitelife.space.com/ver1.0/Content/images/store/11/14/6bc8727c-ffbf-4ef5-ae7a-8ef44e43d1be.Medium.jpg" alt="" /> <img src="http://sitelife.space.com/ver1.0/Content/images/store/2/1/12b56980-2741-4f32-91fc-4ea0f8e7e048.Medium.jpg" alt="" />Also Phoenix may overturn the rock known as Headless.Position of Headless Rock. <img src="http://sitelife.space.com/ver1.0/Content/images/store/3/1/1364eba5-fd69-40c1-814c-ebb238dcc43a.Medium.jpg" alt="" />Weather Report Sol 109. <img src="http://sitelife.space.com/ver1.0/Content/images/store/7/2/c744e1f6-f940-4160-b2f6-7e4c02fc7186.Medium.jpg" alt="" />  Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Sep 23, 2008

Headless HAS been moved. Sol 117. <img src="http://sitelife.space.com/ver1.0/Content/images/store/5/7/b5df5c0f-812a-470f-a7ca-f69beadaf36e.Medium.jpg" alt="" /> Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

silylene old · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>....Incidently,some parts of the Antarctic Pleateau do get cold enough for CO2 snow here on Earth.  But it is not notibable, as far as I know because of the water snow.Jon Posted by jonclarke</DIV>Jon, I have thought about the possibility of CO2 snow on the coldest days on Antarctica too.  I suspect that the partial pressure of CO2 in the earth's atmosphere above the Antartic plateau is not high enough to condense into solid CO2 in order to snow.  I also suspect that any frozen CO2 even on the coldest days would show net sublimation, for the same reason.  However, I have not been able to locate the phase equilibrium data anywhere to be sure.  The possibility of forming CO2/ice clathrates could make the equilibria more complex also. <div class="Discussion_UserSignature"> <div class="Discussion_UserSignature" align="center">- - - - - - - - - - - - - - - - - - - - - - </div><div class="Discussion_UserSignature" align="center">I really, really, really miss the "first unread post" function. </div> </div>

MeteorWayne · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Why is it that every time there is a story on the MEx site people don't talk about it, but just whinge?  All MEx data is released 6 months after is is obtained.  It is publically available online.  There are publications of research results monthly.  But to people talk about  it? No, they just whine.This is a Phoenix thread.  There is a brief disgression to talk about the martian south pole, based on .a forthcoming MEx paper.  But no opportunity is too fleeting to put to boot into ESA.  Sorry to come down on you Wayne but this ingrained and widespread anti ESA attitude really pisses me off.  It is just prejudice, pure and simple.Jon Posted by jonclarke</DIV> Jon, sorry, I do tend to joke about it a bit. It's really not whining. Since you are a tad sensitive about it, I'll try and joke a bit less

Wayne <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

MeteorWayne · Sep 23, 2008

NASA will hold a televised media briefing on Monday, Sept. 29, at 2 p.m. EDT (11 a.m. PDT). Briefing participants will provide an update of the Phoenix Mars Mission. The briefing will be carried live by NASA TV and on the Internet at: NASA TV <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

JonClarke · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Jon, I have thought about the possibility of CO2 snow on the coldest days on Antarctica too.  I suspect that the partial pressure of CO2 in the earth's atmosphere above the Antartic plateau is not high enough to condense into solid CO2 in order to snow.  I also suspect that any frozen CO2 even on the coldest days would show net sublimation, for the same reason.  However, I have not been able to locate the phase equilibrium data anywhere to be sure.  The possibility of forming CO2/ice clathrates could make the equilibria more complex also. Posted by silylene</DIV>It would be a nice experiment to do down there.  Fancy a winter at Vostok? it only  officially gets down to minus 88!

<div class="Discussion_UserSignature"> 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 Arthur Clarke </div>

3488 · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>NASA will hold a televised media briefing on Monday, Sept. 29, at 2 p.m. EDT (11 a.m. PDT). Briefing participants will provide an update of the Phoenix Mars Mission. The briefing will be carried live by NASA TV and on the Internet at: NASA TV Posted by MeteorWayne</DIV>Thanks Wayne for your tip off earlier also. You know me, I'll be watching & no doubt we will both be the first to report. <img src="http://sitelife.space.com/ver1.0/Content/images/store/9/13/59aee5aa-b8bc-411f-ad5c-656b30985c89.Medium.gif" alt="" /> A lot has happened since the last one, though we have found plenty to report on in the interum. Replying to: <DIV CLASS='Discussion_PostQuote'>It would be a nice experiment to do down there.  Fancy a winter at Vostok? it only  officially gets down to minus 88!

Posted by jonclarke</DIV>Hi Jon,I need to double check, but was a new cold record of -92 C recorded there @ Vostok in August 2006? As I said I need to check if it is official or not?Hi all,Newly exposed ground after 'Headless' was moved. Sol 117. <img src="http://sitelife.space.com/ver1.0/Content/images/store/7/13/378d2f58-51bd-43c0-ad88-620068ac2481.Medium.jpg" alt="" />  Headless rock in new position. Wonder when it last moved??????? <img src="http://sitelife.space.com/ver1.0/Content/images/store/4/8/24bb287e-31c2-4d1b-a8a0-9b490bf37bf0.Medium.jpg" alt="" /> Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

JonClarke · Sep 23, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Jon, sorry, I do tend to joke about it a bit. It's really not whining. Since you are a tad sensitive about it, I'll try and joke a bit less

Wayne Posted by MeteorWayne</DIV> No worries.  It is just that the joke is well past its use-by date and in many cases (like anti-NASA jokes) there is sometimes and agenda behind them (not from you though).ThanksJon <div class="Discussion_UserSignature"> 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 Arthur Clarke </div>

3488 · Sep 24, 2008

Frost monitoring continues.A thin layer of frost covers this small patch of very familiar ground. Sol 118 Alt -16.73 Azm 126.05 deg at 7:22 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/7/8/67f72dff-f9d5-41ed-b823-1dbcf6fd9c51.Medium.jpg" alt="" />  Oven 2 doors partially opened Sol 118. <img src="http://sitelife.space.com/ver1.0/Content/images/store/12/13/1c941a0f-fb94-4432-ad01-b75211966262.Medium.jpg" alt="" />  Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Sep 24, 2008

Phoenix catches another Dust Devil Sol 117.At 14:39 HRS LMST. Look about one third from the right at the base of the hills, a brightening can be seen, where dust is starting to lift. <img src="http://sitelife.space.com/ver1.0/Content/images/store/5/0/f55bd1ec-e5b9-4977-9048-bd0065814d61.Medium.jpg" alt="" />  At 14:40 HRS LMST, the Dust Devil has moved to towards the left, about a quarter of the way in from the left. Has become much more obvious during that minute. <img src="http://sitelife.space.com/ver1.0/Content/images/store/2/0/22cee46d-0da1-4144-805d-44074d6cc37a.Medium.jpg" alt="" />  More frost on Sol 119 at 03:44 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/3/7/73756624-9778-4aeb-b7c4-4813acb019d0.Medium.jpg" alt="" />Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

JonClarke · Sep 24, 2008

Anyone seen any good recent colour images of frost?Jon <div class="Discussion_UserSignature"> 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 Arthur Clarke </div>

3488 · Sep 27, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Anyone seen any good recent colour images of frost?Jon Posted by jonclarke</DIV>Hi Jon, I haven't. Maybe they're coming, I hope so anyway.Hi all, Looks likes Oven doors 3 - 7 on TEGA have been 'opened'.  <img src="http://sitelife.space.com/ver1.0/Content/images/store/4/12/04c5acdb-7d1c-4f4d-9c25-64842f13d6e4.Medium.jpg" alt="" />Sol 121 at 13.29 HRS LMST SSI mast shadow over Headless. <img src="http://sitelife.space.com/ver1.0/Content/images/store/8/14/68e586fa-9129-4ec8-be43-672c10e3307b.Medium.jpg" alt="" />  Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Sep 29, 2008

Don't forget!Press Conference later @ 11:00 PDT, 14:00 EDT, 19:00 CET & 20:00 SCET. Hopefully there will be some interesting stuff to report on. I think there will be.Will be on NASA TV.Andrew Brown. <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

MeteorWayne · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Don't forget!Press Conference later @ 11:00 PDT, 14:00 EDT, 19:00 CET & 20:00 SCET. Hopefully there will be some interesting stuff to report on. I think there will be.Will be on NASA TV.Andrew Brown. Posted by 3488</DIV> Already have the stove timer and two alarm clocks set

<div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

MeteorWayne · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Already have the stove timer and two alarm clocks set

Posted by MeteorWayne</DIV> Bump, NASA TV top of the hour... <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

3488 · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Bump, NASA TV top of the hour... Posted by MeteorWayne</DIV>MASSIVE FIND.Calcium Carbonates found both by TEGA & MECA.PH of regolith approx 8.3 or similar to Ocean Water on Earth.Optical Microscope:Iron Oxides with magnetic orbs. Made spherical by wind erosion.Some particles are angular.Some CLAY particles found by Atomic Force Microscope. TECP confirms dry, unhydrated regolith. Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

3488 · Sep 29, 2008

Movie of rising Sun.Moving clouds over the horizon. Magnetic Particles. Weather Sol 112. <img src="http://sitelife.space.com/ver1.0/Content/images/store/8/2/38683fbb-551c-449f-82f1-f2e14ae42cf8.Medium.jpg" alt="" />  Confirmation of savage axial tilt changes of Mars over millions of years, from being on its side like Uranus to being more or less bolt upright. When Mars was tilted further over, the ground was damper, creating the clays & calcium carbonates detected.Hiemdall Crater to N E only a few million years old, much younger, by default the ejecta landscape Phoenix is on is much younger than any other landing site, successfully landed on. Confirmation of attempt of microphone usage in October. 8% Clays in regolith. Not sure if this is representative of regolith on Mars as a whole or particular to the Phoenix site.TEGA Four ovens used thus far.Previous thinking was Magnesium Sulphates (Epson Salts) as found by MERs, but Perchlorates appear to be newly found at the Phoenix site.Filling of remaining TEGA ovens, attempting to fill others with more ice rich material. Three more should be used at least prior to lowering power.MECA three used, fourth blocked by ice rich regolith, but trying ideas to fill that fourth one.Question of Phoenix being awoken during the Spring next year. Theoretically possible, but technical practicalities, glasification of soldering components, snapping off of Solar Panels, etc more likely.Winter Solstice could be as cold as Minus 150 C / -238 F (colder than thought possible initially). Problems of icy material getting loaded into TEGA. Some freezing inside of scoop, some clogging on the screen, getting worse as temperatures are getting lower, but there may be other work arounds to this problem.Geochemistry (Areochemistry) No flowing water at this site, but possibly standing water, during the times of greater axial tilt, highly saline in a very thin atmoshere. Confirmation of snowfall using LIDAR, looks like Virga were it falls but does not reach the ground. Moving of Headless may help in determining icy precipitation against regolith that was covered.Regarding Phoenix longevity: Power consumption exceeds power generation expected around mid to late November, possibly up to solar conjunction in early December. That is minimum useful usage, i.e Weather station & SSI, both low consumption instruments.Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

MeteorWayne · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>  Posted by 3488</DIV> Good job Andrew, I will do my scribblenotes anaway, but I think you covered all the main points. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

3488 · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Good job Andrew, I will do my scribblenotes anaway, but I think you covered all the main points. Posted by MeteorWayne</DIV>Please do Wayne, your scribblenotes will be far superior to my inane ramblings!!!!!!!! <img src="http://sitelife.space.com/ver1.0/Content/images/store/11/15/1b291ae9-cae4-48e1-8fd5-25171ae93c46.Medium.gif" alt="" /> But WOW, what a fascinating Press Conference, amazing stuff indeed & so much accomplished. Hopefully those who whine & ***** about Phoenix not delivering can belt up & grow up now. <img src="http://sitelife.space.com/ver1.0/Content/images/store/14/2/9e27cf03-5001-4d7d-b20d-0c0849730472.Medium.gif" alt="" /> The one question though not answered proerly IMO, though it could have been due to a bad phoneline, was the period of the Martian obliquity variations.The Earth I know has the precession of the equinoxes every approx 25,850 years & the Obliquity Variation (21 to 24 degrees) approx 41,000 years. But that question was never answered properly.Wonder if the Martian periods are still to be thought of 51,000 years (Precession of Martian Equinoxes) & 90,000 years (Obliquity Variation). <img src="http://sitelife.space.com/ver1.0/Content/images/store/8/14/d8f501a7-2ed6-4b41-aea2-65f269526f32.Medium.gif" alt="" /> Looks like the supposed variation of 14 degrees to 35 degrees tilting has been thrown out, with the variation instead of 0 degree to 90 degrees (like Uranus)  being more likely with the Phoenix results. Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

tampaDreamer · Sep 29, 2008

What is the significance of this find? As always, thanks for the info and discussion. <div class="Discussion_UserSignature"> </div>

MeteorWayne · Sep 29, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Please do Wayne, your scribblenotes will be far superior to my inane ramblings!!!!!!!! But WOW, what a fascinating Press Conference, amazing stuff indeed & so much accomplished. Hopefully those who whine & ***** about Phoenix not delivering can belt up & grow up now. The one question though not answered proerly IMO, though it could have been due to a bad phoneline, was the period of the Martian obliquity variations.The Earth I know has the precession of the equinoxes every approx 25,850 years & the Obliquity Variation (21 to 24 degrees) approx 41,000 years. But that question was never answered properly.Wonder if the Martian periods are still to be thought of 51,000 years (Precession of Martian Equinoxes) & 90,000 years (Obliquity Variation). Looks like the supposed variation of 14 degrees to 35 degrees tilting has been thrown out, with the variation instead of 0 degree to 90 degrees (like Uranus)  being more likely with the Phoenix results. Andrew Brown.  Posted by 3488</DIV> Unfortunately, there's not a real good answer to that, Andrew. It's chaotic, so about the best you can do is define the limits (Peter said obliquity of 60-70 degrees max, but I'm sure that's just a back of the envelope estimate). Trying to predict timing in a multi body problem is futile.Perhaps, with future analysis and future missions some general timelines might be discovered from the data (I think there was a comment about that), but when dealing with the interactions that produce the shift in axis (for earth, as well as all other solar system rubble such as Mars) it is an insoluble problem from a mathematical standpoint to any reasonable precision. Espececially for Mars, since it's such a lightweight, and is more strongly influenced by Jove. <div class="Discussion_UserSignature"> But the Krell forgot one thing John. Monsters. Monsters from the Id. I really, really, really, really miss the "first unread post" function </div>

3488 · Sep 29, 2008

Cheers Wayne, I just threw up notes as they came in, so yes the maximum 70 degree tilt is probably correct.Yes Jove will have a larger effect, since Mars wth only 11% Earth's mass & orbits closer to the Jovian orbit, will muddle things somewhat.I found the possibility of the landscape being so young due to the formation of the Heimdall Crater to the N E very interesting. Did not say what sort of time period, only a few tens of millions of years. That shot of Heimdall from the MRO HiRISE, with Phoenix on the chute descending in front, did make me think that crater looked young, now we have the actual link with the Phoenix data.However it does hinder with looking for clues with ancient Mars, unless the veneer is thin enough for Phoenix to dig through.Andrew Brown.  <div class="Discussion_UserSignature"> "I suddenly noticed an anomaly to the left of Io, just off the rim of that world. It was extremely large with respect to the overall size of Io and crescent shaped. It seemed unbelievable that something that big had not been visible before". Linda Morabito on discovering that the Jupiter moon Io was volcanically active. Friday 9th March 1979.http://www.launchphotography.com/ http://anthmartian.googlepages.com/thisislandearthhttp://web.me.com/meridianijournal </div>

Phoenix Mars Lander Extended Mission. Sol 90+ & R.I.P Sol 157.

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