http://news.yahoo.com/nasa-rover-reaches-rim-big-martian-crater-162132203.html;_ylt=ArJ78S94YJdQw75Qp5ZFG42HgsgF;_ylu=X3oDMTM2YzhucjRpBHBrZwNjMzBmNTg2ZC1kMTJlLTMxYjgtOTQ1ZS1jN2NiNTRhNGExMzEEcG9zAzE4BHNlYwN0b3Bfc3RvcnkEdmVyAzMxNzU1MWEwLWM0NDMtMTFlMC1iN2M4LWU5NTI1ZGI5Y2Q4MQ--;_ylg=X3oDMTJkbDM4amVvBGludGwDdXMEbGFuZwNlbi11cwRwc3RhaWQDBHBzdGNhdANzY2llbmNlfHNwYWNlIC0gYXN0cm9ub215BHB0A3NlY3Rpb25zBHRlc3QD;_ylv=3
LOS ANGELES (AP) — NASA's surviving Mars rover
Opportunity has reached the rim of a 14-mile-wide
crater where the robot geologist will examine rocks
older than any it has seen in its seven years on the
surface of the red planet, scientists said Wednesday.
The solar-powered, six-wheel rover arrived at
Endeavour crater after driving 13 miles from a
smaller crater named Victoria.
The drive, which took nearly three years, culminated
Tuesday, when Opportunity signaled it had arrived at
the location dubbed Spirit Point in honor of the
rover's twin, which fell silent last year.
"We're there," said project manager John Callas of
NASA's Jet Propulsion Laboratory.
Opportunity and Spirit landed on opposite sides of
Mars in 2004 and used their instruments to discover
geologic evidence that the cold and dusty planet was
once wet.
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