““Exploring the deep ocean is difficult. It’s cold, it’s corrosive, and it’s crushing (the sea’s three Cs). Any equipment we send down has to be able to survive these rigors. On top (or bottom) of that, it’s dark. The illumination from lights aboard deep-ocean submarines or submersibles is quickly absorbed as it passes through just a few meters of seawater, so the images we can return are just perhaps the size of a large living room.””
