sciencefriday | Giant jellyfish and mussels. Pallid
shrimp, fish, and sea cucumbers. Never-before-seen octopus species. All
these and more dwell in the deep sea, 200 meters (over 650 feet) and
deeper beneath the ocean surface. It’s the largest habitat on Earth, but
it’s also one of the least understood.
As mining companies eye the mineral
resources of the deep sea—from oil and gas, to metal deposits—marine
biologists like London’s Natural History Museum’s Diva Amon
are working to discover and describe as much of the deep sea as they
can. Amon has been on dozens of expeditions to sea, where she’s helped
characterize ecosystems and discover new species all over the world. And
she says we still don’t know enough about deep sea ecology to know how
to protect these species, the ones we’ve found and the ones we haven’t
yet, from mining.
But accessing the deep ocean is
expensive; it can cost anywhere from $50,000 to $100,000 a day to run a
research ship. So roboticists and artificial intelligence designers are
developing underwater drones to map and sniff out the secrets of the
deep with the help of sophisticated chemical sensors. These robotic
explorers could someday hunt down sunken ships or planes, hydrothermal
vents, and biological spectacles such as rare species or a whale fall,
at a cost significantly cheaper than today. Nine teams of roboticists
designing these underwater crafts are now in a race to win the Shell Ocean Discovery XPRIZE.
In this segment, Amon and XPRIZE’s
Jyotika Virmani join Ira to talk about the future of deep ocean
exploration—and what we might find there. And Martin Brooke, team leader
of Blue Devil Ocean Engineering at Duke University, will discuss his
team’s plan for mapping the deep ocean: aerial drones that drop
sonar-sounding pods into the seas, then reel them up and move them to
the next target.
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