<p>This artists rendering provided by NASA shows the Mars Rover, Curiosity. After traveling 8 1/2 months and 352 million miles, Curiosity will attempt a landing on Mars the night of Aug. 5, 2012. (AP Photo/NASA)</p>
July 31, 2012
Stories this photo appears in:
July 31, 2012 9:15 p.m.
Landing is key for NASA Mars rover
'Curiosity'hopes to explore Red Planet
PASADENA, Calif. (AP) - It's NASA's most ambitious and expensive Mars mission yet - and it begins with the red planet arrival late Sunday of the smartest interplanetary rover ever built. Also the most athletic.