Knowledge Spectrum on Instagram: "Deep ocean underwater mining reaches miles below the surface where sunlight never penetrates and pressure is extreme, using remotely operated vehicles and autonomous machines to locate and extract valuable minerals like polymetallic nodules, cobalt-rich crusts, and seafloor massive sulfides. These robotic systems crawl or cut across the seabed, collecting material and pumping it to surface vessels through long riser pipes, while onboard crews monitor operations