The numbers are startling: According to even the most generous estimates, more than 80 percent of the world's oceans are totally unmapped. The average ocean depth is nearly two and a half miles ...

Earth's oceans have no 'elevation features' and are in a 'container' A Facebook post shows an image of a string of islands in a calm expanse of ocean alongside a diagram of different topographic ...

Well, it turns out, for most of the planet’s surface — the ocean floor, that is — we don ... funded by governments and nonprofits around the world, to map the entire seafloor for the ...

In fact, only around a couple dozen people have actually been to the deepest part of the ocean floor, a place known ... race to map the entirety of the world's ocean by 2030, which experts say ...

The four assistants, along with several others, carried underwater video cameras and dived to parts of the ocean floor off Australia ... deserves a place in the world.” ...