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Originally posted by kleverone
Either way those pics are pretty amazing. I'm open to just about anything and willing to believe whatever seems the most true to me, and so far I'm not convinced that mars is what NASA portrays it as or at least our progress in getting there.
Yet rarely pay attention when you give it, like the Stargate papers I posted from the LANL and the AFRL... The mere fact that these two agencies are TALKING about stargates and how they work should be more than enough to wake people up...
Originally posted by darkbluesky
because the particulates are extremely angular and the unconsolidated sediments have a much higher angle of repose than the weathered and rounded sediments of earth..also lower gravity.
Originally posted by zorgon
Okay sulphate salts... in the rocks that hold the blueberries LOL
[edit on 30-4-2007 by zorgon]
sulphate and other saline indicators formed by groundwater seeping into the rocks and altering them or carrying dissolved saline ions that precipitated within the host rocks, giving the mixture of silicate-sulphate suggested by the second diagram upwards. The one salient fact and conclusion that seems firm: water has played one or more roles in affecting some of the rocks at the martian surface.
The recent
discovery of haematite concretionsby NASA’s MarsExploration Rover ‘Opportunity’, and its analogy with terres-trial haematite ‘blueberries’, constitutes new evidencefor an early wet Mars. Besides, other minerals like phyl-losilicates, carbonates and sulphateshave been identifiedin SNC meteorites, suggesting water mediated precipitation of these minerals
Originally posted by zorgon
OH NOOOOO You have a Venus thread??? Arrgggggg
Originally posted by blue bird
I pretty much hold a belief that these thick,acidic clouds of Venus, are in fact hiding life. There are some interesting things about chemical composition of atmosphere....and there is this solar radiation....and lightning which produce huge amount of CO2 - but SOMETHING IS REMOVING IT...and also hydrogen sulfide and sulfur dioxide...and as I have written in thread: “These two gases react with each other, and so are never normally found together unless something is producing them...so, yes there are some indicators...as are about Mars and Europe, in enormous liquid, methane ocean (( methane being byproduct of organic metabolism and something had to CONSTANTLY SUPPLY this FRESH gas)).....and also methaneTitan...
* I again recommend Asimov on Chemistry of Life
I don't have the slightest idea.
Originally posted by zorgon
Well ArMaP sand or water....
Mind telling me what THIS is?
Have you ever walked over Portland cement powder? It reacts in a very similar way to that dust on Mars, and it is one of the finest powders I know, so I think that it only needs to be an extremely fine powder to react like that. Oh, and dry, in the case of the cement.
Originally posted by zorgon
I want to know why if Mars is dry and dusty the rover leaves tracks like this
That stay for a very long time, as evidenced by later shots from space...
No, it just means that if we already know those and if HiRISE photos are more detailed, then they are the best to compare with those from other probes.
Originally posted by zorgon
So now if its "not from HiRise" its not valid anymore?
Originally posted by ArMaPHave you ever walked over Portland cement powder? It reacts in a very similar way to that dust on Mars, and it is one of the finest powders I know, so I think that it only needs to be an extremely fine powder to react like that. Oh, and dry, in the case of the cement.
Originally posted by ArMaP
I don't have the slightest idea.
Originally posted by zorgon
Well ArMaP sand or water....
Mind telling me what THIS is?
Have you ever walked over Portland cement powder? It reacts in a very similar way to that dust on Mars, and it is one of the finest powders I know, so I think that it only needs to be an extremely fine powder to react like that. Oh, and dry, in the case of the cement.
Originally posted by zorgon
I want to know why if Mars is dry and dusty the rover leaves tracks like this
That stay for a very long time, as evidenced by later shots from space...
No, it just means that if we already know those and if HiRISE photos are more detailed, then they are the best to compare with those from other probes.
Originally posted by zorgon
So now if its "not from HiRise" its not valid anymore?
And thank you for the jets' photos and the CO2 explanation.
Originally posted by zorgon
It will start the section on Martian Weather...
Another mystery is why the south polar cap, with its thin layers of water ice, is slightly offset from the pole itself.
"It's something we don't understand," Smith said.
What is clear is that clouds hover over the caps as the weather starts to warm in the martian spring in the northern and southern hemisphere.
Orbiter data shows that those thin clouds vanish as the sun rises, and that the material falls back to Mars as frost or snow.
"This is clearly evidence that it snows on Mars," Smith said.
With high resolution pictures of the northern and southern hemispheres now available on a regular basis, scientists will be able to monitor the ebb and flow of Martian seasons as never before, and perhaps gain a new understanding of Martian water, snow, and frost.