Explorer Victor Vescovo completes mission to dive to deepest points in the world's oceans. ... American undersea explorer Victor Vescovo has become the first person to dive to the deepest points of the earth's five oceans, and he's now back on dry land to reveal his discoveries.

What percentage of the oceans have been explored by man?

Despite its size and impact on the lives of every organism on Earth, the ocean remains a mystery. More than 80 percent of the ocean has never been mapped, explored, or even seen by humans. A far greater percentage of the surfaces of the moon and the planet Mars has been mapped and studied than of our own ocean floor.

Is there anyone exploring the ocean?

More than eighty percent of our ocean is unmapped, unobserved, and unexplored. Much remains to be learned from exploring the mysteries of the deep.