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Come to Papa

The autonomous underwater vehicle (AUV) Sentry is recovered after a dive in the North Atlantic during an April 2008 test cruise on the research vessel Oceanus. From left: WHOI engineers Rod Catanach and Al Duester, boatswain Clindor Cacho, and Andy Billings (partly hidden behind Clindor).The AUV Sentry is scheduled to make its first official science mission next week on the RV Tommy Thompson out of Seattle, Wash. John Delaney and colleagues from the University of Washington plan to use the vehicle for high-resolution multi-beam sonar mapping of the Juan de Fuca Ridge. (Photo by Chris German, Woods Hole Oceanographic Institution)