The new SentrY Precision Robotic Impeller Driven (SyPRID) sampler uses spinning blades inside tubes to gently pump large volumes of water, and the microscopic organisms it contains, through a net system housed within two carbon fiber composite tubes. The autonomous underwater vehicle (AUV) Sentry is part of the National Deep Submergence Facility at WHOI. (Photo by Andy Billings, Woods Hole Oceanographic Institution)

Full resolution (750 × 552)
The new SentrY Precision Robotic Impeller Driven (SyPRID) sampler uses spinning blades inside tubes to gently pump large volumes of water, and the microscopic organisms it contains, through a net system housed within two carbon fiber composite tubes. The autonomous underwater vehicle (AUV) Sentry is part of the National Deep Submergence Facility at WHOI. (Photo by Andy Billings, Woods Hole Oceanographic Institution)