Did A Lake Once Cover Spirit Rover’s Landing Site On Mars?
Mosaic images of Comanche outcrop from NASA’s Spirit rover, which ceased communications to Earth in 2010. Credit: NASA/JPL-Caltech/Cornell University/Arizona State University
Science is an iterative process, with each discovery building on those made before. This means that as new evidence comes into play, you need to examine the evidence in context of what you know now, and what you knew before. Sometimes the evidence points to new theories. And sometimes, like in this case concerning Mars, it points to older ones.
The Spirit rover spent six years (2004-2010) exploring Gusev Crater, which is just a little south of the Martian equator. Scientists have been back and forth about whether it once was a vast lake of water, but some new research could swing the pendulum towards the water hypothesis.
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Read the rest of Did A Lake Once Cover Spirit Rover’s Landing Site On Mars? (508 words)
© Elizabeth Howell for Universe Today, 2014. |
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Post tags: columbia hills, comanche, Gusev Crater, mars 2020, spirit
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Source: http://www.universetoday.com/111078/did-a-lake-once-cover-spirit-rovers-landing-site-on-mars/
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