merbs writes: In Papua New Guinea, one well-financed, first-mover company is about to pioneer deep sea mining. And that will mean dispatching a fleet of giant remote-operated robotic miners 5, 000 feet below the surface to harvest the riches scattered across ocean floor. These mammoth underwater vehicles look like they’ve been hauled off the set of a sci-fi film—think Avatar meets The Abyss. And they’ll be dredging up copper, gold, and other valuable minerals, far beneath the gaze of human eyes. Read more of this story at Slashdot.