�In pictures:�Southern rovers
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The robots should be able to deal with ordinary features on the Antarctic surface, though ridges higher than 30cm could be a problem.

Objects smaller than that it can climb over. "It can climb up stairs," says James Lever. "We didn�t design that � but of course, students, when you give them a robot..."

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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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