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#1 2021-12-15 19:34:46

Void
Member
Registered: 2011-12-29
Posts: 4,520

Water in the Valles Marineris: The Grand Canyon of Mars

Well, water in the great canyon on Mars, it seems likely.

https://www.esa.int/Science_Exploration … 20as%20ice.
Quote:

ExoMars discovers hidden water in Mars’ Grand Canyon

I have to study this more.  I will also post this under the section on water for other members to also comment if they might wish.

https://science.nasa.gov/valles-mariner … anyon-mars

Done


Done.

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#2 2021-12-15 20:10:07

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 25,629

Re: Water in the Valles Marineris: The Grand Canyon of Mars

ExoMars_Trace_Gas_Orbiter_maps_water-rich_region_of_Valles_Marineris_pillars.jpg

A little more googling and I find that Nasa had eyes on this back in Jul 7, 2016 Mars Canyons Study Adds Clues about Possible Water

sure it looks smooth but is it possible to land in this very tight area.

pia20756-main_vm_rsl.jpg?itok=a1wdFJc2

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#3 2021-12-15 20:17:37

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 25,629

Re: Water in the Valles Marineris: The Grand Canyon of Mars

ExoMars Trace Gas Orbiter TGO

tahanson43206 wrote:

SpaceNut ... I looked for this orbiter but did not find it...

https://www.msn.com/en-us/news/technolo … hp&pc=U531

Who's up for an adventure? You just need to catch a crewed spacecraft to Mars, land near a massive canyon there and go in search of hidden water. The ExoMars Trace Gas Orbiter (TGO) spacecraft has found evidence of "significant amounts of water" in the Valles Marineris canyon system on the red planet.

TGO is operated by the European Space Agency and Russian space agency Roscosmos. The orbiter has an instrument on board that maps hydrogen in the upper layer of Martian soil. Data shows an unusual amount of hydrogen in Candor Chaos, a central region of Valles Marineris, indicating that as much as 40% of the near-surface material in that area could be water.

"With TGO we can look down to one meter below this dusty layer and see what's really going on below Mars' surface -- and, crucially, locate water-rich 'oases' that couldn't be detected with previous instruments," Igor Mitrofanov of the Space Research Institute of the Russian Academy of Sciences said in an ESA statement on Wednesday. Mitrofanov is lead author of a study on the water findings published in the journal Icarus.

Looks like a good place for a Lander Drill probe.

(th)

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#4 2021-12-21 18:42:59

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 25,629

Re: Water in the Valles Marineris: The Grand Canyon of Mars

Key items from Voids link

Nuetron detection is being used.

The Valles Marineris is a 2,500-mile-long canyon on Mars with parts that are 4 miles deep. Not only is it 10 times longer and 4 times deeper than the Grand Canyon, but the Valles Marineris' length is nearly as long as the entire United States.

We will be hard pressed to come up with a means to create a cover to allow for a gradual pressure build up

"We can look down to (3 feet) below this dusty layer and see what’s really going on below Mars’ surface – and, crucially, locate water-rich ‘oases’ that couldn’t be detected with previous instruments," Mitrofanov said. "Assuming the hydrogen we see is bound into water molecules, as much as 40% of the near-surface material in this region appears to be water."

Scientists are unsure whether the detected water is ice or water bound to the soil, but Alexey said it's most likely in ice form, similar to the permafrost found throughout the Arctic region. Håkan Svedhem, co-author and former project scientist for the ExoMars Trace Gas Orbiter, said the team must now discover what type of water is in the soil.

sum's it up that ground proof is needed

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#5 2021-12-21 19:48:22

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 2,461

Re: Water in the Valles Marineris: The Grand Canyon of Mars

On Elon Musk
Musk said, ‘I’ll be surprised if we’re not landing on Mars within five years Musk
https://spacexmania.com/1/archives/1389

SpaceNut wrote:

Key items from Voids link

Nuetron detection is being used.

I've seen other news Articles also say it can look 3 feet deep or 1 meter


Some articles on  European (ESA) and the Russian Roscosmos satellite instruments
Space dot com
https://www.space.com/32250-exomars-mar … ience.html
'The Russian-built FREND (Fine Resolution Epithermal Neutron Detector) will indirectly look forwater-ice deposits up to 3.3 feet (1 meter) below Mars’ surface.
Since Mars has such a thin atmosphere, the planet's surface is constantly bombarded with harsh cosmic rays that break apart atoms. This reaction releases high-energy neutrons that are then captured by the elements in the surrounding Martian dirt or released back into the atmosphere.'
https://spaceflight101.com/exomars/trac … struments/
FREND, developed at the Space Research Institute (IKI) in Russia, is responsible for the detection of subsurface hydrogen to a depth of one meter to uncover water-ice deposits near the surface. Measurements of subsurface water and OH by FREND will be ten times better than previous missions.


Old thread with a discussion of sub surface waters and manned landings
http://newmars.com/forums/viewtopic.php?id=1787
'Where exactly is Mars Direct with NASA? - Are they going to do it or not?'

Last edited by Mars_B4_Moon (2021-12-21 20:08:04)

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