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Water on Mars
Origins of water• The impact of asteroids
to mars surface.
• Polar caps of ice
• Subsurface finds of reservoirs of water
Possibility *Organic and carbon compounds
Nano fossils
Geological changes
Weather changes
Co2 instead of H2o in liquid form.
Discovery of the mineral hematite
• Mars Global Surveyor discovered a large exposure of the mineral in Eagle Crater.
• Opportunity was sent to this location for further exploration.
Opportunity lands on Eagle Crater
• Minerals identified and mapped by rovers.
• Among these hematite which often forms in the presence of water.
• Also Goethite which only forms when water is involved.
Blueberries
• Hematite inclusions discovered by Opportunity.
• Embedded in the rocks and were released over time by erosion.
• These blueberries are spread out evenly inside the rocks.
Victoria Crater
• Larger and deeper than Eagle Crater.
• Presence of sulfur-rich materials throughout study area which indicates acidic watery environments.
Columbia Hills
• It is located in GUSEV Crater.
• Spirit used its RAT to locate sulfur.
• The rock was named Peace after Martin Luther King.
• Probable evidence of past alteration by water.
Endeavour Crater
• Curiosity part of the Mars Exploration Project.
• There was clay with smectites that form in pH neutral water.
• This is evidence that the water was consumable.
Works Cited
http://tinyurl.com/lpzqzyv accessed Jan. 28th, 2014.
http://tinyurl.com/mvql56t accessed Jan. 28th, 2014.
Mcewen, Alfred S.1. "Mars In Motion." Scientific American 308.5 (2013): 58-65. General Science Full Text (H.W. Wilson). Web. 16 Jan. 2014.
http://tinyurl.com/n3xjaky accessed Jan. 28th, 2014.
Hubbard, Scott. Exploring Mars: Chronicles from a Decade of Discovery. Tucson: University of Arizona Press, 2011.Web.
Barlow, Nadine G. Mars: An Introduction to Its Interior, Surface and Atmosphere. Cambridge, UK: Cambridge University Press, 2008. Web.
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