Mars Express updates

JonClarke · Oct 18, 2008

ESA provide a regular monthly update featuring discoveries of interest from the Mars  Express mission.  I thought wwould start a thread listing these, where we coul discuss them.October's update was on the Phobos flyby, already discussed.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>

JonClarke · Oct 18, 2008

September 26th updatehttp://www.esa.int/SPECIALS/Mars_Express/SEMB4QQ4KKF_0.htmlThis is a very lunar looking landscape, with flood basalts burying the deeper parts of the landscape and the hills rising through them.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>

MeteorWayne · Oct 19, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>September 26th updatehttp://www.esa.int/SPECIALS/Mars_Express/SEMB4QQ4KKF_0.htmlThi is a very lunar booking landscape, with flood basalts buring the deeper parts of the landscape and the hills rising through them.Jon Posted by jonclarke</DIV> Good idea, Thanx Jon! <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 · Oct 19, 2008

Thanks Jon,This is a great idea. I must be more disciplined myself & seek out more MEX material.I have linked below to the Phobos thread as of course Phobos is a major highlight of the MEX mission & hope that Phobos & also Deimos will feature in the future. Link here to MEX Phobos thread.Regarding Mangala Fossae,Wonder if it is an ancient eroded volcanic province like Tharsis, did not grow so big & ended it's active period sooner. Perhaps MRO could use HiRISE the image the central strip, looking for signs of volcanic plugs & dykes. To me the MEX imagery suggests that we are looking at volcanic features that formed not long after Mars's crust had solidified. Wonder if there are remnants of Mars's fossilized magetosphere are trapped here? Would be a great place to search.Once again, thanks Jon.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 · Oct 21, 2008

Anyway, Andrew, take two.....The story of the region is quite complex.It is near the northern edge of the southern highlands, so the uplands are quite old.  They might be basalt, but they may also have sediments and ejcta deposits too, I am not too familiar with the region.  Certainly they have been heavily eroded, possibly by water and certainly by wind.  The highlands have subsequently been cut by several major fracture systems, Mangala Fossae and Memnonia Fossae, propably related to volcanic events.  These may be related to the much younger flood basalts that have filled the lower part of the the  landscape.  These could be related the the earliest phases of the Tharisis eruptions.Then there is Mangala Vallis, whose headwaters are in this region.  I am not sure what the timing is of the valley relative to the lava.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>

JonClarke · Oct 21, 2008

More Mars Express images Evidence of flooding at Mangala Valles http://www.esa.int/esaMI/Mars_Express/SEM4SS2VQUD_0.html Interesting abstracts on the region Mars Surveyor in Mangala Valles: 1. Site Justification and Mission Scenario http://www.lpi.usra.edu/meetings/lpsc97/pdf/1519.PDF Mangala Valles Outflow Region: Morphology and Stratigraphy as seen by the High Resolution Stereo Camera (HRSC) http://www.cosis.net/abstracts/EGU05/07802/EGU05-J-07802.pdf Hydrological Parameter Extraction And Analysis Of Mangala Valles Of Mars http://www.lpi.usra.edu/meetings/7thmars2007/pdf/3116.pdf Formation of Mangala Fossa, the source of the Mangala Valles, Mars: Morphological development as a result of volcano-cryosphere interactions http://www.agu.org/pubs/crossref/2007/2005JE002644.shtml Origin Of Ridged Deposits Proximal To Mangala Fossa, Mars http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1591.pdf Mangala Valles, Mars: Investigations Of The Source Of Flood Water And Early Stages Of Flooding http://www.lpi.usra.edu/meetings/lpsc2004/pdf/1147.pdf History of Major Degradational Events in the Highlands of Mars: Preliminary Results From Crater Depth/Diameter measurements http://www.lpi.usra.edu/meetings/lpsc2005/pdf/1055.pdf Northern Memnonia Area: A Potential Site For “Modern” Ground Water http://web99.arc.nasa.gov/~vgulick/MSLS99_Wkshp/Greeley_Kuzmin_Memnonia_abs.pdf    <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>

JonClarke · Nov 22, 2008

First global map published in August 22nd issue of JGR.  It is ot certain whether they will be bright enough to be seen from surface.http://www.esa.int/SPECIALS/Mars_Express/SEMY1B5DHNF_0.htmlJon <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>

JonClarke · Dec 1, 2008

The High Resolution Stereo Camera on board ESA’s Mars Express imaged the Eumenides Dorsum mountains on the Red Planet.  Eumenides Dorsum lies at approximately 2° south and 206° east.... The mountains are located to the west of the Tharsis Region, and form part of the Medusae-Fossae Region, which is most likely covered by a blanket of volcanic ash.http://www.esa.int/SPECIALS/Mars_Express/SEMRS2AWYNF_0.htmlJon <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 · Dec 1, 2008

Replying to: <DIV CLASS='Discussion_PostQuote'>The High Resolution Stereo Camera on board ESA’s Mars Express imaged the Eumenides Dorsum mountains on the Red Planet.  Eumenides Dorsum lies at approximately 2° south and 206° east.... The mountains are located to the west of the Tharsis Region, and form part of the Medusae-Fossae Region, which is most likely covered by a blanket of volcanic ash.http://www.esa.int/SPECIALS/Mars_Express/SEMRS2AWYNF_0.htmlJon Posted by jonclarke</DIV>Thanks Jon,To me the area no4, looks as though it may contain a giant ****. Difficult to tell for sure until we get another look with either MEX or MRO, from straight down at higher resolution, though 13 metres, is very good though.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 · Dec 3, 2008

I notice that the SDC main page has picked up the story on aurora.  The comments are increasingly wierd the further you go... <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>

JonClarke · Dec 15, 2008

Important role of groundwater springs in shaping Mars http://www.esa.int/SPECIALS/Mars_Express/SEMJDBSTGOF_0.html Data and images from Mars Express suggest that several Light Toned Deposits, some of the least understood features on Mars, were formed when large amounts of groundwater burst on to the surface. Scientists propose that groundwater had a greater role in shaping the martian surface than previously believed, and may have sheltered primitive life forms as the planet started drying up. <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>

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