We knew that our buggy would have to be bigger and tougher, with skis large enough to handle the rough terrain.

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"The scale here is huge, this big empty landscape, with its large oaks and great skies, " Graham says of the Norfolk terrain.

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This advanced avionics system, which rivals that on any airliner, uses multiple large iPad-like displays that provide graphic images of the terrain below, complete navigation information, charts, systems status and a wide range of other details that enhance pilot safety and situational awareness.

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"There is a large crater in the western portion of the landing zone which contains rougher terrain than what we've seen elsewhere, " Zurek told reporters.

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