Heather Stewart

Jon Copley, a deep-sea biologist, explains hadal life and molecular adaptations. Alan Jamieson, an experienced submersible pilot and trench researcher, shares hair-raising dive stories and engineering challenges. Heather Stewart, a geoscientist, gives geological context on subduction trenches and seafloor processes. They discuss trench discovery, bizarre trench fauna, sediment flows, pollution at depth, and risks from mining and climate change.

Alan Jamieson, deep-submergence explorer and hadal ecologist. Jon Copley, ocean exploration and deep-sea biology communicator. Heather Stewart, marine geologist specializing in subduction trenches. They describe descending into the Mariana Trench, engineering challenges of hadal exploration, trench geology and sediment flows, bizarre deep-sea life like snailfish, pervasive human debris, and the science and conservation questions that keep researchers returning.