Deep

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What Are Hydrothermal Vents?
Oceanography

What Are Hydrothermal Vents?

Hydrothermal vents are places on the seafloor where seawater circulates through hot, chemically reactive ocean crust and returns to the ocean carrying dissolved minerals…

September 11, 2026
What Is the Deep Sea?
Oceanography

What Is the Deep Sea?

The deep sea is the vast ocean environment below the sunlit surface layers, commonly including waters deeper than about 200 meters. It is cold, dark, under high pressure…

September 11, 2026
How deep is the ocean?
Oceanography

How deep is the ocean?

The average depth of the ocean is about 3,700m. The deepest point in the ocean known today is Challenger Deep in the Mariana Trench with a depth of about 10,935m (nearly…

March 31, 2025
Mars' Surprising Effect on Earth's Oceans
Space science

Mars' Surprising Effect on Earth's Oceans

Although Mars may be some 225 million kilometers away from Earth, the planet is already affecting the climate where humans live, according to new research.

March 31, 2025