Wednesday, January 19, 2005
Mars dust
iWon News: "If sand is continually blowing in and being deposited on the surface, burying things and building up terrain over time, meteorites will be covered and few will be seen, rover mission scientist Steve Squyres said Tuesday.
But if fine surface material is being continuously stripped away by the wind, coarse things such as meteorites will be left behind and their accumulation will show."
-If the dirt is stripped away, where does it actually go? The Amazing Steve predicts the findings will be that 'winds both periodically deposit and strip away surface sediments'. Look at the Earth - the Sahara has moved great distances over time - areas once dry are now forests. I dont think that little rover can figure out Mars by sniffing one rock.
But if fine surface material is being continuously stripped away by the wind, coarse things such as meteorites will be left behind and their accumulation will show."
-If the dirt is stripped away, where does it actually go? The Amazing Steve predicts the findings will be that 'winds both periodically deposit and strip away surface sediments'. Look at the Earth - the Sahara has moved great distances over time - areas once dry are now forests. I dont think that little rover can figure out Mars by sniffing one rock.
# posted by Stevie P @ 6:37 AM 
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Ok fine, say I'm a liar. I guess piano wire wheels won't work on Mars like they did on the Moon.
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The physics of sand here on Earth is not as well understood as you might think. Sand on Mars is even more of a mystery. So what? The physics of sand is critical to such things as driving, digging and mining.
NASA-supported scientists are working to understand Martian soil to prepare for the day when astronauts land on the red planet.
FULL STORY at
http://science.nasa.gov/headlines/y2005/31jan_sandsofmars.htm?list863089
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The physics of sand here on Earth is not as well understood as you might think. Sand on Mars is even more of a mystery. So what? The physics of sand is critical to such things as driving, digging and mining.
NASA-supported scientists are working to understand Martian soil to prepare for the day when astronauts land on the red planet.
FULL STORY at
http://science.nasa.gov/headlines/y2005/31jan_sandsofmars.htm?list863089
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