The Stonehenge Hidden Landscapes Project used ground-penetrating radars (left) and GPS-guided magnetometers (right) to produce what amounts to a 3-D map of a four-square-mile area. Photo by Henrik ...
Henderson waves a telescopic pole behind one of Stonehenge's ancient bluestones. Drones are not permitted to fly within the stone circle, so the team attached a light panel to a pole in order to light ...
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