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PBS News Hour

The challenges of wiring up an undersea volcano

Hundreds of miles off the coast of Oregon and Washington, there's an undersea volcano known as Axial Seamount. Two months ago when it began spewing lava, it wasn't a secret to a group of scientists engaged in a groundbreaking research project. Hari Sreenivasan reports on their Cabled Observatory -- a network of sensors, moorings and cameras that offers views of a little-known world.

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