Girona 500 AUV (IMAGE) Woods Hole Oceanographic Institution Caption The crew from the R/V Aegaeo ready the University of Girona's autonomous underwater vehicle (AUV) Girona 500. Researchers used the AUV, equipped with the TETHYS mass spectrometer (shown strapped to hull), to identify subsea layers of water with unusual chemical properties. HCMR's Thetis sub is shown to the left and the island of Santorini is in the background. Credit Photo by David Ribas, University of Girona Usage Restrictions For news related to these findings License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.