Over centuries, diving technology has developed from diving bells to clunky diving suits to "air-lungs."
For the last few centuries, inventors, researchers and naval forces have worked to improve human's ability to dive deep.
But still much about the deep sea remains uncertain.
Tens of thousands of robots are now being used for deep sea exploration and drilling.
Here's how deep sea exploration has helped make our oceans a little less opaque.
Persons:
—, James Cameron
Organizations:
Service