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Touching Mars: Huge NASA Rover Carries Strong Arm for Red Planet
This artist concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

Countdown to Mars Landing

August 5, 2012

Scientists are eagerly awaiting Monday August 6, when researchers at the Mars Science Laboratory will learn if the Curiosity rover has successfully landed on the red planet.