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Sentry in the Gulf of Mexico

The autonomous underwater vehicle (AUV) Sentry, shown here in the Gulf of Mexico in July 2010 with WHOI’s (from left) Cameron McIntyre, Andy Billings, and James Kinsey. In the background are several ships used to help stop the flow of oil into the Gulf from the damaged well. Sentry returned to the Gulf of Mexico at the end of 2010 on a mission to survey the ocean floor in areas suspected of being affected by oil. During the cruise, which was documented on the Dive and Discover web site, Sentry used its sonar and camera to provide researchers an advanced, detailed view of areas they thought would be worth a closer look using the submersible Alvin. (Photo by Rich Camilli, Woods Hole Oceanographic Institution)