More than 30 illustrated articles about deep-sea science at sea and on land.
Deep-sea scaleworms are a source of fascination to two particular biologists.
Some of the first-ever photos of these creatures.
Investigating tiny organisms that live in water and rocks kilometers below the sea's surface.
Two very distinct types of worm… or are they?
Have researchers discovered a new species of deep-sea snail in the South Pacific?
Investigating mussels, snails and other animals living near hot vents.
Special on-board aquaria help researchers learn how vent animals cope with a harsh environment.
If deep-sea creatures like tubeworms and mussels are attached to the seafloor, how do they colonize new sites kilometers away?
Researchers need some hardy equipment to visit seafloor vents in person. The manned submersible Alvin has to cope with toxic, corrosive fluids, extreme temperatures and immense pressures.
Pioneering biologist Tim Shank uses submersibles to home in on ocean-floor creatures.
Stitching together photos to form detailed images of seafloor structures and animals.
The submersible Jason II acts as scientists' eyes and hands.
Investigating the make-up of vent fluid.
How do scientists detect eruptions at deep-sea volcanoes?
Located in the South Pacific's Lau Basin.
Office workers on land may have a fire drill once or twice a year. But office buildings don't usually run the risk of sinking or being boarded by pirates. Expedition researchers and crew practice for such emergencies.
Liz Podowski of Penn State University records highlights from the final 48 hours before an expedition sails
The Research Vessel Kilo Moana inside and out.
A short tour of the R/V Melville (named after the 19th century explorer George Wallace Melville)
How the ship's Captain and Mates keep the expedition on track and plan for bad weather
Weeks at sea in the South Pacific may sound like fun, but living and working on a ship in constant motion can be a real challenge.
Especially when you're hundreds of miles from the nearest source of supplies.
Shipboard journalist Kristen Kusek gets to grips with the International Dateline.
Why proper disposal of waste matters to marine wildlife.
Records impressions from her first ever research expedition to the South Pacific.
Gets a chance to go to sea for the first time in more than a decade of studying ocean rocks.
Amy Townsend-Small usually does fieldwork in the rainforests of the Amazon. So what was she doing on a ship in the middle of the Pacific Ocean?
On the hunt for seafloor vents, Sisi Tonganevai was a welcome addition to the research team.
Why researchers are fascinated by areas of the seafloor between Tonga and Fiji.
How the magma moves beneath mid-ocean ridges will help scientists to better understand how the Earth's crust is formed and predict how, when and where volcanic eruptions may occur.
Discovering how mineral deposits form when hot vent fluid mixes with cold seawater.
Listening to earthquakes yields vital data about the formation of new seafloor.
Lava from the seafloor holds clues to major Earth processes.