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Published byFelicity Isbell Modified over 10 years ago
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Centre of Planetary Science and Exploration University of Western Ontario
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What did they observe Revisit the question: How likely is it that water flowed across Mars?
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5 instruments Camera Spectrometer Laser Altimeter Magnetometer Found gullies Found gray hematite An iron oxide mineral formed in standing water Site selected for the rovers during the next mission! 1 km
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March 2004 Microscopic View Opportunity confirmed this presence!! Found mm-sized balls nicknamed blueberries. Significance? On Earth, grey hematite always needs liquid water to form. Opportunity found other evidence that standing liquid water occurred at the landing site.
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