The mysteries of the Antarctic deep will be probed by a new vessel capable of plunging 6.5km (four miles) down
      Isis, the UK’s first deep-diving remotely operated vehicle (ROV), will be combing the sea-bed in the region in its inaugural science mission.
      Researchers hope to uncover more about the effects of glaciers on the ocean floor, and also find out about the animals that inhabit these waters.
      The mission begins in mid-January and will last for about three weeks.