What creatures lurk in the pitch-black oceans of Challenger Deep? The deepest part of the Earth’s oceans is a portion of the ...

Ocean depth is divided into zones: littoral, bathyal, abyssal and hadal. The deepest part of the ocean, the hadal zone, is anywhere deeper than six kilometres. What is the average depth of the ocean?

Measuring the Greatest Ocean Depth The Challenger Deep in the Mariana Trench is the deepest known point in Earths oceans In 2010 the United States Center for Coastal Ocean Mapping measured the ...

In 1977 scientists discovered that at the deepest parts of the ocean, which people had long imagined to be dark, cold, and lifeless, was a strange environment teeming with life. Marine geologist ...