On board RRS Sir David Attenborough as it prepares for Antarctic trip

On the Antarctic research ship Sir David Attenborough, engineers are gathered around a 4-metre square opening in the hull, known as the moon pool. A white robot floats in the water, its headlights illuminating the sides of the pool. "Now push it forward and drop it to the bottom," says Jamie Neilson, an engineering supervisor at Seatronics, the maker of this remotely operated vehicle (ROV).