Марсианская Вечная Мерзлота имени РОНАТУ

[ronatu]

 
Possible Salt Deposits in Noachis Terra[/size]  (PSP_006649_1615)
Credit: NASA/JPL/University of Arizona

The THEMIS instrument onboard the Mars Odyssey spacecraft identified a possible salt deposit in this area, based on the infrared colors of the ground. Salt deposits typically form when water evaporates, suggesting that this might have once been an area favorable for life on Mars.

The possible salt deposit is the slightly lighter-colored area in the center of the image.

The light-colored material is found peeking out from underneath sand dunes between small ridges and knobs of more tan colored material in the enhanced color data.

This suggests that the (possibly) salty layer was buried by other materials and then exposed by erosion.

This layer also exhibits a fracture pattern similar to clay-rich materials visible elsewhere on Mars.

It is interesting that this layer is also relatively devoid of boulders, suggesting that it is made up of some weak material.

 http://hirise.lpl.arizona.edu/PSP_006649_1615

[ronatu]

The Nili Fossae are valleys that have cut into the ancient crust of Mars, exposing clay minerals. These minerals formed in the presence of water and may be the result of chemical reactions between hot water and rocks. If so, this could have been a favorable location for Martian life in ancient times.

This HiRISE image is part of a series in search for a safe place the Mars Science Laboratory rover can land. In the central part of the image, the terrain is a mix of sand dunes and relatively smooth rock exposures. There are some small knobs but very few large rocks in the area. Instead, the multi-colored rock exposures seem to be mostly a mosaic of flat fractured rock.

On the southern edge of the image, an impact crater is a potential hazard. In the northern part of the image, the scarp marking the boundary of the valley is visible.

[ronatu]

ESA presents Mars in 3D

http://www.esa.int/esaCP/SEM8Q2PR4CF_index_0.html

[В А Д И М]

ESA presents Mars in 3D

http://www.esa.int/esaCP/SEM8Q2PR4CF_index_0.html

Слишком психоделично...  :?

[ronatu]

Nili Patera with Bright and Dark Bedrock Exposures Between Dunes (MRO/HiRISE) - imaged 6 Jun 2007

[ronatu]

Proctor Crater Dune Field (MRO/HiRISE) - imaged 5 May 2007

[ronatu]

Crater Like Landform in the Southern Residual Cap (MRO/HiRISE) - imaged 3 Mar 2007

[ronatu]

Melas Chasma (Mars Odyssey/THEMIS) - false color image from 13 Aug 2007


The big image above shows the western Melas landing site, which tucks into a small basin below the south rim of Valles Marineris. While the basin is more than 5,000 m lower than the south rim, it still stands 1,200 m  above the floor of Valles Marineris. Geologists describe such a feature as a "perched basin."

According to research by Catherine Weitz (Planetary Science Institute), Cathy Quantin (National Air & Space Museum), and others, the basin likely contains deposits left when it was once filled with a lake. Even long after the lake waters drained away or dried up, such sediments could preserve evidence of former microbial activity, if it existed.

The image is a false-color mosaic of photos taken by the Thermal Emission Imaging System (THEMIS), a multi-wavelength camera on NASA's Mars Odyssey orbiter.

As Mars Odyssey flies in a near-polar orbit, THEMIS scans almost all of Mars, capturing its surface in 5 visible colors and 10 infrared ones. This mosaic is made of infrared frames taken by day and by night.

The false colors hint at the nature of the ground surface. Rusty tones show where rocks and hard deposits abound, while greens and blues indicate the areas where gravel, fine sand, and dust particles predominate

[ronatu]

...Забудьте вы все эти теории.

Tak oHo caMo co6ou' no/\y4uTcR - c rogaMu...

A BoT kpyroBopoT BogbI B npupoge He oTMeHuTb. Sorry. :evil:

http://www.esa.int/SPECIALS/Mars_Express/SEMKZRNSP3F_0.html

Franck Montmessin, from the Service d'A

[ronatu]

Ono/\3Hu - Landslide, Ganges Chasma



http://hrscview.fu-berlin.de/cgi-bin/ion-p?ION__E1=UPDATE%3Aion%3A%2F%2Fhrscview.ion&UPDATE=Update+view&image0=0000&image=2101_0000&lat=-7.901&lon=318.704&zoom=2&mode=mars&scale=50&persp=on&pview=North&exag=2&viewport=760x440

[Yurdel]

Саха-Якутия, картина на склоне. Подтаивание вечной мерзлоты после обильных дождей -

[mihalchuk]

Proctor Crater Dune Field (MRO/HiRISE) - imaged 5 May 2007

Кетчуп на полотенце. Вас надули.

[Yurdel]

картина также из Саха-Якутии. Это образование возникло поздней осенью, когда поверхность земли уже подмерзла, а на глубине продолжалось летнее таяние мерзлоты по инерции. . Такие картины встречаются на Марсе?

[ronatu]

http://hirise.lpl.arizona.edu/images/2008/details/cut/PSP_007193_2640_cut_b.jpg

[ronatu]

[ronatu]

Another one:

http://hirise.lpl.arizona.edu/images/2008/details/cut/PSP_007151_1445_cut_b.jpg

[ronatu]

U/\u:

[lll]

2 Ronatu
A few days later, NASA scientists announced that a spacecraft
orbiting Mars had discovered compelling evidence of water on Mars within the past seven years.
http://www.citizensforspaceexploration.org/docs/2007-01-03_Sen_Hutchison.pdf
 :shock:

[ronatu]

2 Ronatu
A few days later, NASA scientists announced that a spacecraft
orbiting Mars had discovered compelling evidence of water on Mars within the past seven years.
http://www.citizensforspaceexploration.org/docs/2007-01-03_Sen_Hutchison.pdf
 :shock:

Umei0TcR B Bugy 7 /\eT ucc/\egoBaHuu'...

[Yurdel]

Спасибо, Ronatu, за прекрасные снимки.  Я это показываю школьникам, хотим написать маленькую исследовательскую работу.  :roll: . Надеемся на сотрудничество.  И еще:

...Но, когда вечная мерзлота под третьей посадочной опорой подалась и "Пегас" опрокинулся, все стало ясно.

Это отрывок из рассказа А.Кларка "Кассета бессмертия", где действие происходит на Марсе. Еще одно предсказание А.Кларка!