Add Yahoo as a preferred source to see more of our stories on Google. The world's oceans are big and dark and deep. They cover approximately 70% of the planet’s surface and contain a huge portion of ...

The Mariana Trench, the deepest part of the world’s oceans, has long captivated scientists and explorers alike. Located in the western Pacific Ocean, this mysterious underwater canyon reaches depths ...

A Chinese submersible has discovered thousands of worms and mollusks nearly 10 kilometers (six miles) below sea level in the Mariana Trench, the deepest colony of creatures ever observed, a study ...

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Can you name a single geologic feature of the deep sea? Take a moment. Think about it. Did you pick the Mariana Trench? Odds are pretty good that you did. It is the deepest point on our planet and one ...