mariana trench

The argument boils down to how ocean depth is measured and whether the bottom of the Mariana Trench is “deadass flat.”

Researchers discovered these ethereal purple specimens four-and-a-half miles down.

Deep sea exploration uncovers crustaceans poisoned by PCBs

Before they finish scouting for "The Real Housewives of Mariana."

And you may not be able to sleep tonight

It's delicate and strange

Woods Hole Oceanographic Institution will incorporate the Deepsea Challenger's technology into existing submersibles and new vehicles. Also: Check out these awesome drawings of the sub!

A look around one of the darkest neighborhoods on Earth

The first video footage is surfacing from James Cameron’s record-setting dive to the deepest known point in Earth’s oceans over...

The trip to Challenger Deep was the first since 1960