Into the abyss: Scientists explore one of Earth's deepest ocean trenches

What lives in the deepest part of the ocean--the abyss? A team of researchers funded by the National Science Foundation (NSF) will use the world's only full-ocean-depth, hybrid, remotely-operated vehicle, Nereus, and other advanced technology to find out. They will explore the Kermadec Trench at the bottom of the Pacific Ocean.

Video: James Cameron is back from the abyss

Famed director James Cameron recently returned from a dive conducted in the depths of the Mariana Trench, located some 200 miles (322 kilometers) southwest of Guam.