Kathy Sullivan, an American geologist, has made history again. This past week, she became the first woman to reach Challenger Deep - that's the deepest point on the surface of the Earth. It's in the ...
The deepest known point in any of the world’s oceans is Challenger Deep, a section of the Mariana Trench that plunges to about 36,070 feet (10,994 meters). It’s an extraordinary place on Earth. While ...
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