The Mars rover Curiosity undergoes a final round of checks before making its first lengthy drive across the surface of the Red Planet.
Curiosity Ready to Roll

1
This view of the lower front and underbelly of Curiosity combines nine images taken on September 9, 2012.

2
This image shows the Mars Hand Lens Imager on Curiosity, with the Martian landscape in the background.

3
A penny that is used by Curiosity to calibrate its Mars Hand Lens Imager camera. The penny is covered in Martian dust, September 9, 2012.

4
One of the five cylindrical blocks of sealed organic material for use in a control experiment if Curiosity's laboratory detectes organic compounds in Martian soil or powdered rock.