expedition 12 Expedition 12
In January 2008, we followed along as scientists hunted for hydrothermal vents along the volcanic mid-ocean ridge in the South Atlantic Ocean.
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classroom activitiesTeacher resources
Visit our collection of classroom activities from the last few expeditions.
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polar discoveryDeeper Discovery
Explore the differences between the Arctic and Antarctica, and their unique ecosystems, geography and weather. Start now »


hot topicsHot Topics
A series of subjects are covered in this section, such as lava flows, seafloor biology, fiber optics, and seasickness. Learn more »


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Dive into Deeper Discovery!

hydrothermal ventsHydrothermal vents
In 1979, scientists in Alvin dove to the Mid-Ocean Ridge in the eastern Pacific. A spectacular sight greeted them. Clouds of what looked like black smoke were billowing from tall chimneys on the ocean floor.
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Click here to go to Expedition 8: The Juan de Fuca Ridge, 2004
Click here to go to Expedition 7: The New England Seamounts, 2003
Click here to go to Expedition 1: Guaymas Basin, 2000
Click here to go to Expedition 2: East Pacific Rise, 2000
Click here to go to Expedition 5: Galapagos Islands, 2001
Click here to go to Expedition 6: Galapagos Rift, 2002
Click here to go to Expedition 3: East Pacific Rise #2, 2000
Click here to go to Expedition 9: Return to Galapagos Rift, 2005
Click here to go to Expedition 4: Indian Ocean, 2001
Click here to go to Expedition 10: Antarctica, 2006
Click here to go to Expedition 11: Arctic, 2007
Click here to go to Expedition 12: South Atlantic, 2008
Expedition 8 Expedition 7 Expedition 1 Expedition 2 Expedition 5 Expedition 6 Expedition 3 Expedition 9 Expedition 4 Expedition 10 Expedition 11 Expedition 12 Woods Hole Oceanographic Institution National Science Foundation