In Pictures: What is so infinitely cool about Mars?

Interest in exploring the Red Planet is at an all-time high -- from millionaire private space-goers to world-wide space programs and scientists

The High Resolution Imaging Science Experiment camera on NASA's Mars Reconnaissance Orbiter which is flying around the Red Planet snapped this series of false-color pictures of sand dunes in the north polar region of Mars. The area covered in each of the five panels is about 0.8 mile (1.3 kilometers) wide.

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