MER-2 "Opportunity"

[Старый]

А земной аналог такого грунта можно где-нибудь увидеть?

[Вадим Лукашевич]

http://www.unmannedspaceflight.com/index.php?act=attach&type=post&id=12040

Ну, вот и ракушки показались!

[Старый]

Ронату, ну чево там, какие новости? Поковыряло оно "светлый грунт"?

[ronatu]

Виктория с разных сторон:

http://www.lyle.org/~markoff/victoria_panoramas.html

[ronatu]

Ронату, ну чево там, какие новости? Поковыряло оно "светлый грунт"?

дискутируют....

"...Ignoring crystallography, the vugs might represent frost-leached or heavily-hydrated former chloride crystals, such as antarcticite or hydrohalite (both unstable much above the freezing temperature of water), or they might instead represent so-called meridianiite:

http://www.lpi.usra.edu/meetings/7thmars2007/pdf/3124.pdf

a heavily hydrated magnesium sulfate [/size]that is likewise unstable much above freezing, or they might even represent tiny ice crystals that later sublimed. Very difficult to say at this point without more data[/size]. Their extremely fine grain size and finely dispersed nature suggests to me that they probably are not normal evaporite crystals, formed by direct crystallization from either liquid surface water or liquid ground water, and likewise that they were never soaked in such warm liquids. They could have formed diagenetically, or immediately after deposition of the originally damp rocks in which they are found. As always, feel free to disagree.  

If you look up the MgSO4-H2O phase diagram in that meridianite reference, you should note that the freezing point depression of magnesium sulfate, the most soluble common sulfate, is only about -4 degrees C, in contrast to common chlorides that (in combination with ice) can still form liquid brines at temperatures up to nearly 50 degrees colder. That is why we feel that very cold subsurface brines on Mars, if any, should be strongly enriched in chlorides instead of sulfates (contrary to what is commonly inferred from the sulfate-rich surface mineralogy). The sulfates might be trapped at or near the surface of Mars simply because they cannot easily be frost leached, except at comparatively high temperatures....."

http://www.lpi.usra.edu/meetings/7thmars2007/pdf/3124.pdf

[Старый]

А снимки где можно глянуть?

[Вадим Лукашевич]

А свежих-то панорам давно нет...

[bykovsky]

http://www.flickr.com/photos/hortonheardawho/1481287082/

[ronatu]

http://www.flickr.com/photos/hortonheardawho/1481287082/

OnRTb He To u He Tyga... :oops:

[ronatu]

А свежих-то панорам давно нет...

3aTo cHuMkoB cko/\bko xoTuTe:



http://www.flickr.com/photos/hortonheardawho/1472474463/




http://www.flickr.com/photos/hortonheardawho/1483821263/





http://www.unmannedspaceflight.com/index.php?act=attach&type=post&id=12140

[ronatu]

А снимки где можно глянуть?

"...NASA and JPL are not obligated to release Opportunity's and Sprint's camera work to us when it arrives from Mars. They have many policies and rules in place that govern the release of information, and have lots of discretion to decide what to release. Congress has been plenty active in this arena as well, ranging from various secrecy statutes to the Freedom of Information Act. Generally, scientific and technical data does not have to be released by the government in a timely manner. In fact, in many instances data will never be released to those of us in the general public, for example, "defense articles" like much of NASA's launch and tracking system information...."

[ronatu]

А свежих-то панорам давно нет...

http://www.novosti-kosmonavtiki.ru/phpBB2/viewtopic.php?t=159&postdays=0&postorder=asc&start=2370

Виктория с разных сторон:

http://www.lyle.org/~markoff/victoria_panoramas.html

[Старый]

А снимки где можно глянуть?

data will never be released

Ну спасибо...

[В А Д И М]

А свежих-то панорам давно нет...

3aTo cHuMkoB cko/\bko xoTuTe:

Фантастическое белое небо на горизонте говорит о недостатке инфы у художников, а вот картинка с ботинком мне тоже понравилась. Отчего там такой рельеф? это будет в новом сериале про роверы?

[Вадим Лукашевич]

А свежих-то панорам давно нет...

3aTo cHuMkoB cko/\bko xoTuTe:

Фантастическое белое небо на горизонте говорит о недостатке инфы у художников, а вот картинка с ботинком мне тоже понравилась. Отчего там такой рельеф? это будет в новом сериале про роверы?

Ну, Вадим, про рельеф Вы должны были сами догадаться - это следы марсианских бакланов на мокром песке. Бывший пляж, одним словом.

[ronatu]

А свежих-то панорам давно нет...

3aTo cHuMkoB cko/\bko xoTuTe:

Фантастическое белое небо на горизонте говорит о недостатке инфы у художников, а вот картинка с ботинком мне тоже понравилась. Отчего там такой рельеф? это будет в новом сериале про роверы?

I took this photo in 2003 (well before the Mars rover landings) on a Grand Canyon trip (outcrops just above Deer Creek Falls at Mile 136.3). With my boot for scale, it shows rare crystal molds in the Tapeats Sandstone, interpreted as a 540 million year old beach sand deposit.
In this case, some seawater presumably became locally isolated and partly evaporated enough to precipitate gypsum or some other salt, then sand was washed or blew in around the crystals, and then the sand deposit was hardened into rock (by carbonate cementation of the sand grains). The salt crystals dissolved in groundwater at some later time, leaving crystal molds in the sandstone.
A similar near-shore evaporitic environment was initially deduced for the crystal molds at Meridiani...

Good catch though...

[ronatu]

BoT naHopaMa:



http://www.unmannedspaceflight.com/index.php?act=attach&type=post&id=12175

A BoT paccBep/\eHhbIu' kaMywek:



http://www.unmannedspaceflight.com/index.php?act=attach&type=post&id=12183

http://www.unmannedspaceflight.com/index.php?act=attach&type=post&id=12177

[Старый]

A BoT paccBep/\eHhbIu' kaMywek:

О! Бормашинка ещё работает.
 Что пишут про камушек?

[max_schmurz]

WASHINGTON - NASA is extending, for a fifth time, the activities of the Mars Exploration Rovers Spirit and Opportunity. The decision keeps the trailblazing mobile robotic pioneers active on opposite sides of Mars, possibly through 2009. This extended mission and the associated science are dependent upon the continued productivity and operability of the rovers.

[Дмитрий Виницкий]

Что за фигня? Бот пробрался???