Somewhere, Under the Fogbow

In between launches of underwater vehicles in July 2007, Peter Winsor and researchers on the Arctic Gakkel Vents Expedition lowered the conductivity-temperature-depth probe in order to look for telltale chemical signals of hydrothermal vents. A fogbow arcs past Winsor’s head and down toward the pot of fluid seafloor gold.(Photo by Chris Linder, Woods Hole Oceanographic Institution)