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Originally posted by StellarX
Why do you not tell us.
Originally posted by ArMaP
18º Celsius lower on the North hemispshere.
What is the typical temperature on Mars?
The daytime SURFACE temperature is about 80 F during rare summer days, to -200 F at the poles in winter. The AIR temperature, however, rarely gets much above 32 F.
The temperatures on the two Viking landers, measured at 1.5 meters above the surface, range from + 1° F, ( -17.2° C) to -178° F (-107° C). However, the temperature of the surface at the winter polar caps drop to -225° F, (-143° C) while the warmest soil occasionally reaches +81° F (27° C) as estimated from Viking Orbiter Infrared Thermal Mapper.
In 2004, the Spirit rover recorded the warmest temperature around +5 C and the coldest is -15 Celsius in the Guisev Crater.
For more martian weather reports from the surface, visit the Mars Global Surveyor weather page
Originally posted by ArMaP
StellarX and blue bird:
I don't see any standing water in any of those photos. I see many erosion marks that could have been made by liquid but I do not see any liquid.
Thanks for pointing something I forgot, that the temperature on the ground is higher than the temperature on the air.
Originally posted by zorgon
You tell me there is ice on Mars...
Even +1 is enough to allow water to form, but +80 most certainly is...
My conclusion would be different, it would be "it looks like this was made by a river" because I do not see any water, and that is what differentiates a river from its bed.
Originally posted by blue bird
If I saw a satellite view image like this of Earth _ my conclusion would be - it's a river......
Naktong Vallis:
To me that looks too flat to be a tree, it reminds me of crystals, not of vegetation, not even in its guise disguise.
and this one - it's a tree...
That is irrelevant for what I see on the photos.
Originally posted by blue bird
Do you know the ( not so long ago) times when considering water anywhere out of Earth was would be way too wild idea?
Yes, that could perfectly be the result of running water, but that is not water, that is why I said that I do not see any water, only the effects that could be produced by a liquid.
What is this?
Is these something preserved like for millions of years - these fresh looking seeping traces down the ridge of Olympus?
Originally posted by zorgon
OH Speaking of Islands I never showed you my version of the famous Mars Face....
Here is the full size high resolution image that most websites avoid showing you... LOL I can see why... it sorta sinks the "Face"
www.msss.com...
But look at it as if you were a geologist for a minute... Here is a browser size version...
And here is the version I drew in the "shorelines" Since that "face" is about 400 km long, that must have been one huge ocean around it. I need to find some continental shelf images on Earth to use for comparison
Its a bit strange answering to a post I made, but here is that image that I was talking about.
Originally posted by ArMaP
Yes, that could perfectly be the result of running water, but that is not water, that is why I said that I do not see any water, only the effects that could be produced by a liquid.
Originally posted by blue bird
What is this?
Is these something preserved like for millions of years - these fresh looking seeping traces down the ridge of Olympus?
Originally posted by ArMaP
StellarX and blue bird:
I don't see any standing water in any of those photos. I see many erosion marks that could have been made by liquid but I do not see any liquid.
Originally posted by ArMaP
Thanks for pointing something I forgot, that the temperature on the ground is higher than the temperature on the air.
Originally posted by StellarX
Some battles can not be won but fight them i will.
Stellar
OK, I will not forget that.
Originally posted by StellarX
And i do not see how anyone could be so blind and misguided.
Was any of those pictures you linked one of those pictures with pools of standing water?
They tell you they now know there is standing water and that they have observed localized water vapour and methane concentrations and even take pictures of the pools of standing water!
Originally posted by ArMaPMy conclusion would be different, it would be "it looks like this was made by a river" because I do not see any water, and that is what differentiates a river from its bed.
Here is another image of a river and small lakes... I see the same dark area that I know is water. It looks the SAME as the one bluebird posted
Here is another pair of images, though they are oriented differently its obvious that one is the negative of the other...
Now looking at these images I would conclude I am looking a a river surrounded by small lakes. The weird circular pattern most likely being from an impact crater...
Now if the second image would by some chance happen to NOT be a negative, then its obvious that the second one is ice and I am looking at a winter and summer scene
In either case, the water looks dark black compared to the surrounding countryside, wheras a dry bed would not show such relief. A deep chasm might, but not a riverbed
It does not look the same to me.
Originally posted by zorgon
Here is another image of a river and small lakes... I see the same dark area that I know is water. It looks the SAME as the one bluebird posted
Yes, but there are other things that show that it is water and not just dark coloured dust or shadow, and one of those things is that it is perfectly matched with the shape it fills and its surface, if the photo shows it, is perfectly flat, something that only a liquid can do.
In either case, the water looks dark black compared to the surrounding countryside, wheras a dry bed would not show such relief. A deep chasm might, but not a riverbed
Mars Gullies Likely Formed By Underground Aquifers
A study team is analyzing images of gullies captured by the Mars Global Surveyor's (MGS) Mars Orbiter Camera, adding in laser altimeter and spectrometer data taken by the same spacecraft. They believe the gullies are the products of shallow and deep aquifers in Mars' subsurface.
The discovery of hundreds of recent water-carved gullies on Mars indicates liquid water can be found at various depths in a wide array of locations, Stoker said.
The cracks are flanked by light bands, called halos, between 5 and 10 metres wide.
For instance, it has seen fluid flow features in Victoria Crater just south of the equator (see photo above), where NASA's Opportunity rover is trudging along the rim . The fractures appear to be surrounded by cemented rock on the eastern crater rim and floor.
Exclusive: NASA Researchers Claim Evidence of Present Life on Mars
A pair of NASA scientists told a group of space officials at a private meeting here Sunday that they have found strong evidence that life may exist today on Mars, hidden away in caves and sustained by pockets of water.