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6,634 published items.

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
The oldest lake on Earth
Environment

The oldest lake on Earth

Earth has only 20 ancient lakes more than one million years old, the oldest of which formed 25 million years ago.

March 31, 2025