A shape that could be an airplane is seen in a 3D sonar image (lower portion) of the USS Independence released by NOAA, which located the shipwreck in Monterey Bay National Marine Sanctuary. A team located the carrier during a maritime archaeological survey. NOAA, Boeing, and Coda Octopus hide caption

itoggle caption NOAA, Boeing, and Coda Octopus

Tugboats guide the INS Vikrant as it leaves the Cochin Shipyard after a launch ceremony in Kochi, India, on Monday. When it comes into full service in 2018, India will become the fifth nation to have designed and built its own aircraft carrier. Manjunath Kiran/AFP/Getty Images hide caption

itoggle caption Manjunath Kiran/AFP/Getty Images