During a two-week research cruise in June 2011, scientists collected more than 1,500 samples of seawater off the coast of Japan. They amassed more than 3 metric tons of water that was shipped to labs around the world to be analyzed for radioactive isotopes. Scientists Ken Buesseler and Steven Jayne from WHOI and Taylor Broek from UC Santa Cruz (top to bottom) take samples from a Niskin bottle, an instrument used to collect water from below the surface. (Photo by Ken Kostel, Woods Hole Oceanographic Institution)[back]
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