The Bluefin 21, the Artemis autonomous underwater vehicle (AUV), is hoisted back on board the Australian Defence Vessel Ocean Shield after a successful buoyancy test in the southern Indian Ocean as ... more 
The Bluefin 21, the Artemis autonomous underwater vehicle (AUV), is hoisted back on board the Australian Defence Vessel Ocean Shield after a successful buoyancy test in the southern Indian Ocean as part of the continuing search for the missing Malaysian Airlines flight MH370 in this picture released by the U.S. Navy April 4, 2014. REUTERS/U.S. Navy photo by Mass Communication Specialist 1st Class Peter D. Blair/Handout via Reuters less 
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Reuters | Photo By HANDOUT / Reuters
Sat, Apr 5, 2014 9:37 AM EDT