Putting H2O in the ocean

Crew members of the University of Washington's R/V Thomas Thompson deploy t he junction box that provides electrical outlets for scientific instruments at the Hawaii-2 Observatory (H2O), the first long-term, mid-ocean seafloor observatory. The junction box is spliced to a retired submarine telephone cable, which provides power to the instruments and allows data to be transm itted in real time from seafloor to shore.