οΏ½In pictures:οΏ½Southern rovers
Summit reached

The robots were developed by scientists and engineers at the US Army's Cold Regions Research and Engineering Laboratory (CRREL) and Dartmouth College, both in Hanover, New Hampshire.

First tests took place around campus; but for the serious business, the team went to Summit Camp in Greenland, a base sponsored by the US National Science Foundation.

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Box on wheels'); CellColorMouseOver(this);">1Pulling power'); CellColorMouseOver(this);">2Under the hood'); CellColorMouseOver(this);">3Summit reached'); CellColorMouseOver(this);">4Plane sailing'); CellColorMouseOver(this);">5Step up'); CellColorMouseOver(this);">6Straight path'); CellColorMouseOver(this);">7
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