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 Mark Spear, a mechanical technician with the Alvin crew, prepares a transponder for dropping overboard. Transponders act as beacons to guide the submersible while exploring the seafloor. The hard yellow plastic case helps protect a glass ball, hydrophone, and computer panel inside.

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Brooke Love studies chemistry at the University of Washington in Seattle, having started her career as a geologist. “With oceanography, I get to combine my interest in both science fields,” she said. This is her third expedition to the Juan de Fuca Ridge.

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