
Chapter 1
Life in the shadows
Chapter 2
Toxic oases and hot springs
Chapter 3
Under crushing pressure
Chapter 4
The technology of discovery
Ch 4 · The technology of discovery
artiteacher Deep-Sea Mining
An iron shell cannot protect them from the machines on the ocean floor.

artiteacher Schmidt Ocean Institute's ROV uses 4K cameras and robotic arms to stream live deep-sea footage to scientists and the public.
Quiz
How do remotely operated vehicles (ROVs) differ from human-occupied submersibles?

artiteacher The vehicle collects rare sponge ambusher worms from northwest Pacific seamounts.
Quiz
How many people can China's deep-sea submersible Jiaolong carry on a single dive?
Quiz
What type of underwater geographical feature does the Jiaolong submersible frequently explore to find new species?
Fun Fact
Unexplored oceans: Humans have mapped less than twenty-five percent of the entire Earth's seafloor.
Quiz
How does onboard genetic sequencing speed up the discovery of deep-sea species?
Quiz
Why are scientists concerned about mining polymetallic nodules on the deep ocean floor?
Quiz
What valuable metals are found inside the deep-sea polymetallic nodules targeted for mining?
