But even where there are no vents, the explorers found life. It turns out an underwater landslide squeezed methane out of the sediment, which supports an entire ecosystem
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ROV Control Room
Credit: National Geographic Digital Motion/Jen Shoemaker
Scientists operate the ROVs from a control room on the ship. The video reveals sights that have never been seen before, in the planet's last unexplored frontier.
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Tanya has been writing for Live Science since 2013. She covers a wide array of topics, ranging from neuroscience to robotics to strange/cute animals. She received a graduate certificate in science communication from the University of California, Santa Cruz, and a bachelor of science in biomedical engineering from Brown University. She has previously written for Science News, Wired, The Santa Cruz Sentinel, the radio show Big Picture Science and other places. Tanya has lived on a tropical island, witnessed volcanic eruptions and flown in zero gravity (without losing her lunch!). To find out what her latest project is, you can visit her website or follow Tanya on twitter or Google+.