NASA's Mars Curiosity Rover, expected to land on the Red planet in three weeks, is NASA's most advanced robotic mission yet.
The Curiosity rover, also called the Mars Science Laboratory, was launched in November 2011. The rover is expected to land on Mars on the night of Aug. 5 PDT. The $2.5 billion rover will touch down at Gale Crater, and is designed to search for clues that Mars could be now, or in the ancient past, a habitable planet for microbial life.
