Mars Rover Opportunity Exploring Possibly Habitable Ancient Environment | Space.com - 0 views
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Opportunity rover,
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clays imply that the area was exposed to relatively neutral — as opposed to harshly acidic or basic — water long ago,
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Mars Reconnaissance Orbiter spacecraft spotted them from orbit, leading the rover team to point the golf-cart-size robot toward its current location, which is known as Matijevic Hill.
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From orbit, we have seen the unambiguous infrared spectral signature of clays along the rim of Endeavour Crater
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ikely stay at Matijevic Hill for a while, trying to understand how the clays were laid down billions of years ago
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Opportunity is still going strong. It has some age-related issues, such as an arthritic arm, but the rover remains in good health
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Part of the work will involve investigating mysterious tiny spherules Opportunity has discovered embedded in the clay matrix