Throughout the course of the second leg of the Okeanos Explorer Northeast U.S. Canyons 2013 Expedition, scientists on the ship and on shore, along with the remotely operated vehicle (ROV) team and ship's crew, were joined by thousands of online viewers as we all explored canyons and intercanyons and Mytilus Seamount along the northeastern coast of the United States. This video captures highlights from the 15 dives that were conducted during Leg 2 of the expedition from the ROV Deep Discoverer and the Seirios camera platform.

Nine ROV dives into the Galapágos Rift 2011 Expedition, the science team finally discovered the type of hydrothermal vent community they had been searching for. Clusters of tube worms, limpets, mussels, and anemones were seen to inhabit cracks in the lava bed where mineral-rich, geothermally-heated water 'vents' out. Two species of tube worms were found in abundance: the giant Riftia pachyptila and also the much smaller, never before observed in the Galápagos, Tevnia jerichonana. Brachyuran crabs, vent shrimp, and scale worms clung not only to the surrounding rock but also to the tube worms themselves in some cases. Extensive fields of dead and living clams surrounded the individual pockets of venting. Video courtesy of NOAA Okeanos Explorer Program, Galapágos Rift Expedition 2011.

Listen to a NOAA video podcast about the NOAA Ship Okeanos Explorer's Continuous Plankton Tow from Guam to California and sampling work conducted through the 'Pacific Garbage Patch'. Learn why systematic exploration aboard the NOAA Ship Okeanos Explorer is an evolving operational model referred to as a 'sticks and boxes' approach. The variety of data being collected onboard the Okeanos during this cruise from Hawaii to California represents a step forward in the exploration that can be conducted with the at-sea time allotted to the ship. Video courtesy of NOAA Okeanos Explorer Program, INDEX-SATAL 2010.

Watch a NOAA video podcast about the NOAA Ship Okeanos Explorer's Continuous Plankton Tow from Guam to California and sampling work conducted through the 'Pacific Garbage Patch'. Learn why systematic exploration aboard the NOAA Ship Okeanos Explorer is an evolving operational model referred to as a 'sticks and boxes' approach. The variety of data being collected onboard the Okeanos during this cruise from Hawaii to California represents a step forward in the exploration that can be conducted with the at-sea time allotted to the ship. Video courtesy of NOAA Okeanos Explorer Program, INDEX-SATAL 2010.

In summer 2010, the United States and the Republic of Indonesia explored deep-sea Indonesian waters that had never been seen before. Together they discovered fascinating areas of the Coral Triangle, where the Indian and Pacific Oceans meet. In Secrets of the Deep Ocean you'll learn about how we explore the ocean, and see a massive undersea volcano and exciting, unusual and often weird-looking creatures that share our planet. Video courtesy of R. Rivera, NOAA Okeanos Explorer Program, INDEX-SATAL 2010.

A compilation of video clips collected in deepwater by the Little Hercules Remotely Operated Vehicle and camera platform during an ROV shakedown cruise aboard NOAA Ship Okeanos Explorer offshore Kona, Hawaii (March 2010). The video footage shows a pelagic sea cucumber (apodid holothurian), Venus flytrap sea anemone (actinoscyphiid sea anemone), tipod fish (chlorophthalmid tipod fish), flatfish (pleuronectiform flatfish), eel (bongrid conger eel), shrimp (benthic caridean likely nematocarcinid shrimp), actiniid Bolocera-like sea anemone with a galatheid crab, Glass sponge and demospongid with hermit crab, and hexactinellid (glass) sponge next to a primnoid coral. Video Credit: NOAA Office of Ocean Exploration and Research.

Mendocino Ridge 4,600ft gas plume discovery off the California coast. Okeanos Explorer, "America's Ship for Ocean Exploration", is equipped with the latest in technology systems, including multibeam sonar. This technology involves sending beams of sonar to the ocean floor and measuring the amount of time it takes for those beams to bounce back to the ship. In doing so, the sonar creates a 3-D "sound picture", or map, of the seafloor. While the ship was testing its sonar off the coast of California, the sound waves bounced off gas in the water column, creating a remarkable image of a gas plume that rose 4,600 feet from the seafloor. A landslide area at the base of the plume has led some scientists to believe that the plume might be methane, released by the landslide from methane hydrates. Okeanos Explorer is preparing to explore the waters north of Indonesia in the summer of 2010, in collaboration with Indonesia. The ship will continue to explore the western Pacific in 2011. Video Credit: NOAA Office of Ocean Exploration and Research.

Scientists funded by NOAA and the National Science Foundation recorded the deepest erupting volcano yet discovered, describing high-definition video of the undersea eruption as spectacular. Eruption of the West Mata volcano, discovered in May 2009, occurred nearly 4,000 feet below the surface of the Pacific Ocean, in an area bounded by Fiji, Tonga and Samoa. We found a type of lava never before seen erupting from an active volcano, and for the first time observed molten lava flowing across the deep-ocean seafloor, said the missions Chief Scientist Joseph Resing, a chemical oceanographer at the University of Washington who collaborates with NOAA through the Joint Institute for the Study of the Atmosphere and Ocean. Though NOAA and partners discovered a much shallower eruption in 2004 in the Mariana Arc, the deeper we get, the closer the eruption is to those that formed most of the oceanic crust. This spectacular sequence is a close view of the eruption with violent magma degassing events producing bright flashes of hot magma. Lava is blown up into the water before settling back to the seafloor, and large plugs of lava flow rapidly down the slope. In the foreground is the front of the Jason remotely-operated vehicle (ROV) with sampling hoses. The area in view is about 6-10 feet across in an eruptive area approximately 100 yards that runs along the summit. Video courtesy of National Science Foundation and National Oceanic and Atmospheric Administration (NOAA).

Scientists funded by NOAA and the National Science Foundation recorded the deepest erupting volcano yet discovered, describing high-definition video of the undersea eruption as spectacular. Eruption of the West Mata volcano, discovered in May 2009, occurred nearly 4,000 feet below the surface of the Pacific Ocean, in an area bounded by Fiji, Tonga and Samoa. We found a type of lava never before seen erupting from an active volcano, and for the first time observed molten lava flowing across the deep-ocean seafloor, said the missions Chief Scientist Joseph Resing, a chemical oceanographer at the University of Washington who collaborates with NOAA through the Joint Institute for the Study of the Atmosphere and Ocean. Though NOAA and partners discovered a much shallower eruption in 2004 in the Mariana Arc, the deeper we get, the closer the eruption is to those that formed most of the oceanic crust. This spectacular sequence is a close view of the eruption with violent magma degassing events producing bright flashes of hot magma. Lava is blown up into the water before settling back to the seafloor, and large plugs of lava flow rapidly down the slope. In the foreground is the front of the Jason remotely-operated vehicle (ROV) with sampling hoses. The area in view is about 6-10 feet across in an eruptive area approximately 100 yards that runs along the summit. Video courtesy of National Science Foundation and National Oceanic and Atmospheric Administration (NOAA).

Listen to a NOAA video podcast on the The NOAA ship Okeanos Explorer, "America's Ship for Ocean Exploration," commissioned in Seattle, WA August 13th, 2008 the ship and crew will undergo field tests off the U.S. West Coast to train operators and test concepts of operations and equipment associated with the ship and its sensors and systems. All this leads to the ship's first full field season of operations in 2009, and a new way of exploring the ocean.

Watch a NOAA video podcast on the NOAA ship Okeanos Explorer, "America's Ship for Ocean Exploration," commissioned in Seattle, WA August 13th, 2008 the ship and crew will undergo field tests off the U.S. West Coast to train operators and test concepts of operations and equipment associated with the ship and its sensors and systems. All this leads to the ship's first full field season of operations in 2009, and a new way of exploring the ocean.