Phoenix surface mission

a_lost_packet_ · Aug 10, 2008

rlb2,First: How does the resolution of the first series of images taken by the microscope compare to the later series of images you have presented?IOW, are each of these series of images proposing to show "something" that is the same size in both?  I'm not so sure on that. Can you link data on the fields of view for both series of images, side by side, for comparison?I'm not in favor of a hasty diagnosis of "life" based on these images.  I'm willing to entertain the thought because it presents some opportunity to learn more about Phoenix's capabilities. <div class="Discussion_UserSignature"> I put on my robe and wizard hat... </div>

rlb2 · Aug 10, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>I'm not in favor of a hasty diagnosis of "life" based on these images.  I'm willing to entertain the thought because it presents some opportunity to learn more about Phoenix's capabilities. Posted by a_lost_packet_</DIV>I agree with that if you read some of what I said in my previous threads you would know and I haven't heard anyone state unequivocally otherwise yet. I am cautiously optimistic and don't want to rush to any conclusions either. Here is a link to several threads back to the images I posted http://www.space.com/common/community/forums/?plckForumPage=ForumDiscussion&plckDiscussionId=Cat:c7921f8b-94ec-454a-9715-3770aac6e2caForum:bf7b9387-46b4-47ed-ad5b-34a5350b82ecDiscussion:9a92d6c4-86a5-4b35-8183-6c97a30c6f8c&plckCurrentPage=75&sid=sitelife.space.com Are you talking about this one sol 72 there are several of them? A larger image comparing them side by side is posted here. All the images are with the Blue filter. The images were taken 1 minute 7 seconds apart from the first one until the last one...http://members.cox.net/theinnovator/l18936b-11.43.17.jpg A movie is here:http://www.youtube.com/watch?v=B_Pgzh1x4-sHere are where they are posted by the Phoenix, U of A site. They are the first three microscopic images.http://phoenix.lpl.arizona.edu/images.php?gID=0&cID=207I am like you and others and caution people from rushing to any conclusion because there is a lot at stake here, however it is intriguing. Have fun...  <div class="Discussion_UserSignature"> Ron Bennett </div>

cello · Aug 11, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Hi Cello, for Phoenix Mars Lander, the final Sunrise during this Martian year will be on Sunday 5th April 2009 (my 40th, a strange co-incidence), The Sun is up for approx 12 minutes.The following day, not at all, though very nearly.The sun will next rise for Phoenix Mars Lander on Tuesday 7th July 2009. The Sun is up for approx 14 minutes. After which the days lengthen very quickly.So the Sun will not rise for a total of three months & two days or 93 Earth days or 90 Sols straight from the Phoenix site. It is worth mentioning that by July 2009, Phoenix will be encased in at least 2 metres deep CO2 ice at this point with ambient temperatures around -135 C / -211 F. Andrew Brown.  Posted by 3488</DIV> BIG thanks for that info!One more question. At what latitude is Mars polar circle? In a mean, how far inside circle Phoenix landed?

3488 · Aug 11, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'> BIG thanks for that info!One more question. At what latitude is Mars polar circle? In a mean, how far inside circle Phoenix landed? Posted by cello</DIV>Hi cello,Quick chime in, I will give you a proper answer later (I'm not @ home, all my astro stuff is @ home), but Phoenix landed approx 2.25 degrees north of the Martian Arctic Circle.If you are interested the Martian Tropics are:Tropic of Aquarius (North) & Tropic of Virgo (South). These are 23 deg 59' N & S respectively. Viking 1 & Mars Pathfinder landed bewtween the equator & the northern one (ToA). Both MERs landed between the equator & the southern one (ToV). Viking 2 landed in the northern mid latitudes. Phoenix therefore is the first successful high latitude landing.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>

Philotas · Aug 11, 2008

Another sample has been successfully delivered to a new TEGA oven. Here's an excerpt from the SDC article: "There appear to be clumps blocking the opening," said Phoenix science lead Doug Ming of NASA Johnson Space Center, in Houston, on Friday.Vibration of the screen on Saturday finally succeeded in getting enough dirt into the oven to begin analysis. The team sent instructions to begin analysis of the sample on Sunday.Phoenix scientists will be looking for signs of perchlorate, a highly oxidizing substance that was detected in dirt samples by the lander's wet chemistry laboratory. The last sample analyzed by TEGA found no indications of any chlorine present <div class="Discussion_UserSignature"> </div>

exoscientist · Aug 14, 2008

Review of the controversy about the sensitivity of the Viking GCMS sent to Mars to detect organic molecules: Secrets of the martian soil. Corinna Wu Nature, 16 Aug 2007, p 742-744 v 448. "Navarro-González was inspired to revisit the Viking tests for organic molecules after the exploratory rover Opportunity discovered jarosite, a hydrated iron sulphate that forms in the presence of water, on Mars in 2004. Studying jarosite-containing soils in the Rio Tinto area of Spain he found that getting organic material out using chemical approaches was relatively easy — but getting it out just by heating was not. “When I repeated the Viking experiments, “ he says, “I was surprised to see that despite the huge amount of organic matter present, there was virtually no detection of organics in the sediments. This was quite strange.” Independently, McKay had been doing research on soils from the Atacama desert in Chile, and had also started to suspect that the Viking experiments weren’t telling the whole story. Alison Skelley, a graduate student at the University of California, Berkeley, had asked McKay to review a paper on a device she had developed for detecting amino acids in soil3. McKay found the paper striking. “It found that there were a thousand times more amino acids released by chemical extraction than pyrolysis” — the heating method used by the Viking experiments. Then McKay says, “Within a month, Rafael told me about his puzzling result with the jarosite. That’s when I suggested that we ought to see if this effect was widespread.”" ... "Heated debate." "Navarro-González and McKay think that during the heating step of the Viking experiment, any organics given off at moderate temperatures would have been turned into CO2 before they reached the GC-MS, thanks to catalytic iron compounds in the Martian soil. “We suggest that a small portion [of the carbon dioxide seen by the Viking experiments] could have resulted from the oxidation of organics,” says Navarro-González. “Even if it’s just a small percentage, this could mean levels of organics on the surface of Mars a thousand times higher than expected.”" http://www.mediabistro.com/portfolios/samples_files/f_H_nfRIm0m4VCEEe4129Gees.pdf     Bob Clark <div class="Discussion_UserSignature"> </div>

3488 · Aug 15, 2008

Midnight Sun at 00:08 HRS LMST on Sol 80. <img src="http://sitelife.space.com/ver1.0/Content/images/store/6/3/b64c42c6-65a9-44ec-9355-36f94c7856e2.Medium.jpg" alt="" />  Midnight Sun at 00:09 HRS LMST on Sol 80. <img src="http://sitelife.space.com/ver1.0/Content/images/store/6/7/f679b354-21b1-43e5-87d4-2be766048055.Medium.jpg" alt="" />  FIRST FROST around Phoenix at 06:00 HRS LMST on Sol 79. <img src="http://sitelife.space.com/ver1.0/Content/images/store/8/2/38dab3b2-9b40-435f-a27c-f8a985544687.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 · Aug 16, 2008

Sol 80, Phoenix deck getting messy!!!! <img src="http://sitelife.space.com/ver1.0/Content/images/store/4/11/84006e6d-966b-437c-9b44-bd9135d28b5a.Medium.jpg" alt="" />  The Messages from Earth DVD is starting to disappear under the dumped samples.View of he ground at 03:18 HRS LMST searching for more frost. <img src="http://sitelife.space.com/ver1.0/Content/images/store/13/3/5dedc9b6-bb90-4f73-a31a-4b7f98ddd427.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>

Philotas · Aug 16, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>FIRST FROST around Phoenix at 06:00 HRS LMST on Sol 79.  Andrew Brown. Posted by 3488</DIV> That's cool; it'll be interesting to follow the raw images as the sols pass by. <div class="Discussion_UserSignature"> </div>

exoscientist · Aug 16, 2008

The Planetary Society Weblog By Emily Lakdawalla Phoenix sol 76 update: Digging at Neverland, Cupboard, Stone Soup, Snow White, Burn Alive; samples for microscope and TEGA 5; and more. Aug. 13, 2008 | 16:07 PDT | 23:07 UTC <div> <div class="smallfont" style="margin-bottom:2px">Quote:</div> <table border="0" cellspacing="0" cellpadding="6" width="100%"> <tbody><tr> <td class="alt2"> One more random item: I asked Mark when Phoenix is going to see its first sunset. He said: "Center of the Sun hits the ideal horizon for the first time sol 92. That makes the first grazing ~90/91 and the first setting ~94. The true visible horizon is ~0.5 degrees higher due to the hill to the northwest (haven't checked the 0.5 deg figure that closely). That advances things by 5 sols. I haven't factored in the possibility that first setting is after midnight due to the terrain slope. We should do some midnight imaging sol 79/80 [i.e. they are planning that right now to take place overnight nextersol]. This will be nice in itself, but will also confirm the details of the timing. It is not clear which nights we'll have the ability to follow up and look for a sun set. Starting sol 84, we've agreed to rein in our appetites for 'night' observations."

JonClarke · Aug 17, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>That's cool; it'll be interesting to follow the raw images as the sols pass by. Posted by Philotas</DIV>Wall paper!!!!!I am hoping to see snow before the end of the mission.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 · Aug 18, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Wall paper!!!!!I am hoping to see snow before the end of the mission.Jon Posted by jonclarke</DIV>I hope so too Jon. Yes I agree, that is a very nice image. Looks like Phoenix is still monitoring frost formation.Sol 81 at 21:28 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/3/6/a38a69fe-ba9d-4758-9656-12c7478c7ba1.Medium.jpg" alt="" />Sol 82 at 00:21 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/11/10/dbcd847b-2160-4db6-9abf-1568d349f374.Medium.jpg" alt="" />Sol 82 at 03:58 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/3/8/837086c6-704c-4364-b824-6b30aed46eac.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>

freya · Aug 18, 2008

Yikes, it's getting cold out there.  <div class="Discussion_UserSignature"> </div>

aaron38 · Aug 18, 2008

So it doesn't actually snow, correct?  The 2 meters of ice that are predicted to form will all be frost deposits, built up layer by layer?Has anyone done any predictions on the process?  I'm curious as to what's the greatest amount of frost that could accumulate in any one sol?

3488 · Aug 18, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>So it doesn't actually snow, correct?  The 2 meters of ice that are predicted to form will all be frost deposits, built up layer by layer?Has anyone done any predictions on the process?  I'm curious as to what's the greatest amount of frost that could accumulate in any one sol? Posted by aaron38</DIV>Hi aaron38,Very timely question.Here is a just released (within the last few minutes) of: Frost building up on the mirror of the Wind Sock thingy.  More frost build up on mirror of Wind Sock Thingy.Below. Sol 82 at 03:44 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/12/12/ecb7b9af-8df2-45f8-aced-49820d75217b.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>

tanstaafl76 · Aug 18, 2008

Wow, what a cool .gif!  <div class="Discussion_UserSignature"> </div>

3488 · Aug 18, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'> Wow, what a cool .gif!  Posted by tanstaafl76</DIV>It sure is tanstaafl76.It is not just cool to watch, it is also physically cool, well darn cold. We are going to learn so much about the change of seasons in the high north latitudes on Mars from the surface with Phoenix. We are seeing the baby steps of the end game for Phoenix.This is the beginning of the end, but I hope it will be a long time before the end game with the cold, lack of sunlight, etc takes it's toll on Phoenix (first sunset of the mission, this Saturday coming). It is water ice frost now, later that will persist all day, then the CO2 will start. How far through the process Phoenix will last, is anyone's guess.I really hope that Phoenix makes it well past Sol 124, the final Sol of the extended mission on: Tuesday 30th September 2008. Now it is sol 83, so another 41 sols. By then we may start seeing some CO2 frost, but I just dunno that we will. I hope so, I really do. I will be keeping a very close eye on all RAW images, but then I have all along anyway, so hopefully will not miss anything. Glad to be of service.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 · Aug 19, 2008

Nice mini mosaic of the Midnight'ish' Sun on Sol 80 @ 00:08 HRS LMST. The Sun itself, barely one degree above the horizon, has been blacked out, to reduce glare & the cone of light, due to Mie scattering is extremely well shown in the arctic skies on Mars @ Midnight.Nice mini mosaic of the Midnight'ish' Sun on Sol 80 @ 00:08 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/10/6/4a82285f-0f02-4dfc-967d-8c294e52acda.Medium.jpg" alt="" />Also Mini Mosaic of the South East view in the early morning on Sol 83 at 06:12 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/10/14/aa71c3c0-c0a9-420d-8efa-6d2f75802211.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>

a_lost_packet_ · Aug 19, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>..Glad to be of service...Posted by 3488</DIV>You "make" this thread.  Your contributions are just spectacular!  Thanks for all the hard work! <div class="Discussion_UserSignature"> I put on my robe and wizard hat... </div>

efron_24 · Aug 19, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>Midnight Sun at 00:08 HRS LMST on Sol 80.  Midnight Sun at 00:09 HRS LMST on Sol 80.  FIRST FROST around Phoenix at 06:00 HRS LMST on Sol 79.  Andrew Brown. Posted by 3488</DIV> seeing the development of frost is just amazing that is such an tear bringer..it is fantastic to see the coming of winter.. It is amazing <div class="Discussion_UserSignature"> </div>

efron_24 · Aug 19, 2008

so finally the sun will set this weekend an amazing momentas the Summer Olympics close.. winter is coming on MarsI thought seasons lasted 2x as long as ours there.. but it seems the Martion summer just 'flew' by <div class="Discussion_UserSignature"> </div>

3488 · Aug 19, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>You "make" this thread.  Your contributions are just spectacular!  Thanks for all the hard work! Posted by a_lost_packet_</DIV>Thank you so very much a_lost_packet_. I do not really deserve that level of compliment, but I am really taken aback. First those incredible images from the full size Pan that I could not download (I have not forgotten BTW, I'm still looking at them & making crops from copies as well as keeping my eyes open for new updates).This mission has really been well worth the effort to save, during the campaign I partook in, to prevent the cancellation bin from keeping Mars Surveyor 2001 Lander, now Phoenix Mars Lander 2007 from being a museum exhibit.If Phoenix was to fail tomorrow, well nextersol seeing as this is Mars, I would NOT be disappointed. I would upset to see her go, but disappointed? No. This has been one hell of a successful mission, showing us a completely different region on Mars, the arctic for the very first time from ground level.First ever midnight sun obs from Mars, first ever insitu regolith sampling in the Martian Arctic, first ever insitu Weather  monitoring from within the Martian Arctic circle, first ever Martian arctic photography in situ & the revelations of the square polygons, something I predicted myself, even before launch, the restoration in the faith of powered landings on Mars (although I think airbags as used by Mars Pathfinder & the MERs are still useful for some types of missions & deliveries), etc. Replying to: <DIV CLASS='Discussion_PostQuote'>so finally the sun will set this weekend an amazing momentas the Summer Olympics close.. winter is coming on MarsI thought seasons lasted 2x as long as ours there.. but it seems the Martion summer just 'flew' by Posted by efron_24</DIV>Hi Chris, yes the Sun sets for the first time since Phoenix landed this coming Saturday. The Sun will only dip below the horizon, for about 12 minutes & start rising again. For the first few Sols the Sun sets for less than half an hour, but after then, the duration will increase more quickly. Mind you the nights will be very short for a while yet, so Phoenix should still get ample sunlight, but I think the biggest problem will be lowering temperatures.The fact frosts have started, signals the beginning of the end. The end of Summer is approaching this far north on Mars.Yes the closing Olympic ceremony in Beijing on Sunday. Phoenix will have had her first Sunset just before then.So far in Sol 84, none has appeared as of 02:09 HRS LMST. Anyway a nice image compiled by Slinted on Unmanned Spaceflight.com. <img src="http://sitelife.space.com/ver1.0/Content/images/store/13/9/9d2312cd-703a-4863-b9f8-5095f9162e2e.Medium.jpg" alt="" /> Patchy frost is visible all the way to the horizon. Sol 83 @ approx 06:12 HRS LMST.  Alt -16.74 deg Azm 126.05 deg Sol 84 at 01:28 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/6/15/8647bae1-be8d-419c-bf6f-ada62a9102b5.Medium.jpg" alt="" />  Same view as above but on Sol 84 at 03:49 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/15/4/7f137edd-5129-4f65-a411-5d37a3c9f3e3.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 · Aug 20, 2008

Raw image AZM 139.98 degrees at 06:08 LMST Sol 83.Frost can be seen to the horizon. <img src="http://sitelife.space.com/ver1.0/Content/images/store/6/4/a6308f09-60c9-48e4-84a1-af92a2ef804c.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 · Aug 20, 2008

Phoenix 'Work Area' labled in colour as of Sol 84. <img src="http://sitelife.space.com/ver1.0/Content/images/store/4/3/842b7cc3-b7b5-49ac-83c3-8c6c4aa05afa.Medium.jpg" alt="" />  Phoenix 'Work Area' mosaic unlabled as of Sol 84. <img src="http://sitelife.space.com/ver1.0/Content/images/store/10/10/fa1f7886-8ab9-4f9c-aaf6-a49e7099441e.Medium.jpg" alt="" />  Is Phoenix now looking for frost in the late afternoon??????? Alt -12.08 deg Azm 110.25 deg on Sol 84 at 20:40 HRS LMST.   <img src="http://sitelife.space.com/ver1.0/Content/images/store/1/6/b1e2f74a-915c-4dc8-b6f0-88034ffdcf11.Medium.jpg" alt="" />Also checking for  dust build up & / or frost on the foot pad?Sol 84 at 17:07 HRS LMST. <img src="http://sitelife.space.com/ver1.0/Content/images/store/13/5/0d45887b-dcb7-4bef-b50c-a7b618cd63ee.Medium.jpg" alt="" />  James Canvin over at Unmanned Spaceflight.com has produced a 'true colour' panorama of the South East at 06:12 HRS LMST with frost on Sol 83.   <img src="http://sitelife.space.com/ver1.0/Content/images/store/3/1/f387bf4e-58a4-4886-a16f-40aa98cec126.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 · Aug 20, 2008

Weather Summary from Sol 62 to Sol 72. <img src="http://sitelife.space.com/ver1.0/Content/images/store/13/2/ed9f0b93-148a-4850-b287-3b1a8866230d.Medium.gif" alt="" />  Weather Summary from Sol 70 to Sol 81. <img src="http://sitelife.space.com/ver1.0/Content/images/store/14/5/9e237f37-d5e6-4dd2-a55f-6d627f993985.Medium.gif" alt="" />It looks like the drop in pressure has now ceased. I believe that the condesation of CO2 within the Martian Antarctic has now stopped, causing pressure to stabilise here at about 7.7 MB. I wonder if it will be starting to climb soon as Winter turns toSpring in the Martian Antarctic & of course Summer turns to Autumn here. I think that it is no accident that the appearance of frost @ the Phoenix site & this event are co-incidental. Perhaps Wayne could chime in & correct me if I'm wrong. Weather Report for Sol 81. <img src="http://sitelife.space.com/ver1.0/Content/images/store/8/10/280a8a79-ecaa-41e9-ba6b-283405f86743.Medium.jpg" alt="" />  Just in. Alt -16.73 Azm 126.05 Sol 84 at 23:30 LMST.There is most definately frost build up & also on the array in the bottom left. <img src="http://sitelife.space.com/ver1.0/Content/images/store/11/1/5bfa2431-d13b-40cf-918d-6c53b429439a.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>

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