The purpose of the current OkeanosExplorer expedition is to help reduce that large unknown, by mapping and imaging features and creatures that may never have been seen before.
The NOAA ship OkeanosExplorer mapped the locations between Nov. 2 and Nov. 20 using multibeam sonar, which produces detailed images of the seafloor by calculating the amount of time and distance it takes for sound waves to travel from the ship to the seafloor and back.