Originally posted by Ear-Responsible
Im confused as to why this is a huge deal?
Does the OP think there is no moisture on Mars??
Originally posted by Phage
reply to post by Dustytoad
That means that an electrostatic charge can build up instead of discharging into the atmosphere.
No irony. It is very dry. Static electrical charges build up.
edit on 9/11/2012 by Phage because: (no reason given)
Originally posted by juleol
I dont get why so many people are skeptical about water on mars. This already happened to spirit rover and was even suggested by nasa that one of the theories could suggest it was sand mixed with brine.
This could form "mud" like we see in those pictures.
Originally posted by rigel4
Can anyone give a brief summery on the thread, i agree that the tyre tracks look damp
as does the sand stuck to the tyre.
Has there been any update from NASA about it?
Curiosity's front Hazard-Avoidance cameras appear as a set of four blue eyes at the top center of the portrait. Fine-grain Martian dust can be seen adhering to the wheels, which are about 16 inches (40 centimeters) wide and 20 inches (50 centimeters) in diameter.
QUESTION: I have looked at the soil and rock analysis, however there is no mention of moisture/water content of soil. In one of the color photos of the rover with its wheel tracks going from the lander to Barnacle Bill and Yogi (photo #82018), it looks as if the soil is quite moist. Is this moisture or not?
ANSWER: While there is considerable water in the Martian soil, I would not call the
soil "wet". Rather, the water is most likely in two forms--chemically bound
water (water of hydration, chemically bound to the minerals) and physically
bound water. The physically bound water, also known as "adsorbed" water,
consists of water molecules attached to the soil grains by van der Waals
So it shouldn't be much of a surprise that 'water' maybe be squeezed out of the soil by the weight of Curiosity as it rolls through the Planet as it happened with Spirit a couple of years ago..
(The nearest thing on Earth as those dunes on Mars) do not show any material getting stuck on the wheels.
There is not enough water for the soil to be considered "moist".
So, what are the tire tracks? Most likely, the wheels disturb the soil and roughen it up. This exposes material underlying the surface. The surface probably has some bright dust on it, so this exposes a darker, subsurface crust of material. The same thing happens in my garden when I take smooth, well-tamped, soil, and break it up with a hoe--the newly roughened surface is darker.
Originally posted by SLAYER69
I haven't read the whole thread yet just the first couple of pages. I have to say that's a cool catch. I know somebody over at NASA sees it as well. Have they released any info yet?
The lunar vehicles had flexible mesh tires. Plenty of adhesion on the hubs though.
Would like to see the moon buggy tires and how caked up the moon dust was for comparison.
thought it was determined there was plenty of water on mars in some form, be it ice or simply percipitation.