The 28-day expedition to this submerged mountain — part of a range called the Nazca Ridge that rests along the Pacific's deep Peru-Chile Trench — has documented 20 brand-new undersea creatures ...

Scientists brave the desert's hardships for a different reason. The Afar is one of the few places on Earth where an undersea ridge—a jagged volcanic seam where magma oozes up and becomes new ...

yet researchers have identified an undersea volcano called Axial Seamount as the perfect place to start practicing. Located on the Juan de Fuca Ridge, some 480 kilometers (300 miles) off the US ...