Purple hagfish, speckled sole, red rockfish, starfish and crabs thrive at Southern Hydrate Ridge with diverse substrates to call home. Credit: UW/OOI-NSF/WHOI. V20.

The 12 ft across platform on the Slope Base Shallow Profiler mooring is home to a variety of fauna, thriving in the nutrient-rich currents. Credit: UW/NSF-OOI/WHOI; V20.

The R/V Thompson is almost in port at the end of the 2020 expedition, here passing under the Yaquina Bay Bridge. Credit: University of Washington, V20.

A rockfish hangs out with soft corals at the carbonate Pinnacle deposit at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20.

Beautiful soft corals are ubiquitous on carbonate deposits that form the Pinnacle at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20.

A sole lounges on the sedimented seafloor at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20

A rockfish hangs out with soft corals at the carbonate Pinnacle deposit at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20.

Beautiful soft corals are ubiquitous on carbonate deposits that form the Pinnacle at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20.

A sole lounges on the sedimented seafloor at Southern Hydrate Ridge. Credit: UW/NSF-OOI/WHOI. V20

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The R/V Thompson is almost in port at the end of the 2020 expedition, here passing under the Yaquina Bay Bridge. Credit: University of Washington, V20.

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Beautiful sunsets and rises are one of the gifts of being at sea in the NE Pacific. Credit: University of Washington. V20

A shore crane works to offload RCA gear at the end of the 2020 Expedition. Credit: R. Scott, University of Washington, V20.

The R/V Thompson in a swirl of mist at the end of the VISIONS20 expedition. Credit: R. Scott, University of Washington, V20.

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Steve Karaduzovic onboard the R/V Thompson during the NSF-funded Regional Cabled Array Expedition. Credit: University of Washington.

Under gentle seas, the sunsets during the VISIONS'20 expedition. Credit: K. Gonzalez, University of Washington.

An osmotic fluid sampler filled with seep fluids from Southern Hydrate Ridge after a 1-year deployment. Credit: University of Washington, V20.

An osmotic fluid sampler is recovered onto the deck of the R/V Thompson that was installed for a year at Southern Hydrate Ridge to sample seep fluids: Credit: University of Washington. V20

Steve cleans an osmotic fluid sampler installed for a year on the seafloor. Credit: University of Washington, V20.

Inside the ROV Jason control van working at the International District hydrothermal field, nearly a mile beneath the surface. Credit. S. Karaduzovic, University of Washington.

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Steve samples ocean water taken during the RCA cruise for chlorophyll (a green photosynthetic pigment) analyses. Credit: M. Elend, University of Washington.

A 'Big Red' Jellyfish swims past Jason at the Slope Base site ~ 68 miles offshore. Credit: UW/NSF-OOI/WHOI. V20.