Add Yahoo as a preferred source to see more of our stories on Google. Just as Earth’s land surface has enormous peaks and valleys, the oceanic world has similarly varied topography. Perhaps the most ...

There are places on this earth that seem as if they are out of this world, such as vast deserts, mountain ranges, and polar ice caps. However, nothing can really compare to what is beneath the surface ...

The Pacific Ocean is home to some of the deepest points on the planet. In fact, four of the top six deepest spots in the world can be found in the Pacific. The Pacific's basin is uniquely low, which ...

Retired Capt. Don Walsh, Ph.D., who commanded the U.S. Navy’s bathyscaphe Trieste, discusses the dive to the deepest place on Earth, the Challenger Deep located at the southern end of the Mariana ...