MARS ROVER IMAGE RELEASED JANAURY 10
Nasa / Jpl / Asu  /  Cornell via Reuters file
This image mosaic taken by the Mars Exploration Rover Spirit's panoramic camera shows a new slice of Martian real estate southwest of the rover's landing site.
By Producer
msnbc.com
AUDIO TRANSCRIPT

Many MSNBC.com readers had the chance to have their Mars questions answered when MSNBC.com chat producer Will Femia and science editor Alan Boyle were joined on the phone by Dr. Joy Crisp, project scientist for the Mars Exploration Rover Project.  With Spirit headed toward "Columbia Hills," and Opportunity on its way to "Endurance Crater," Dr. Crisp discussed some of the rovers' functionality, objectives, discoveries and future.

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