Meet the physical property and downhole measurement specialists of Expedition 355. These scientists measure physical properties of the cores and the borehole walls to provide information about things like density, porosity, magnetic susceptibility, and acoustic velocity. These properties are indicators of composition, formation, tectonic regime, and environmental conditions of the deposits. From left: Rajeev Saraswat (Physical Properties Specialist, National Institute of Oceanography, India), Rakesh Saxena (Physical Properties Specialist, ONGC, India), Annette Hahn (Physical Properties Specialist, University of Bremen, Germany), and Liz Griffith (Physical Properties Specialist, University of Texas at Arlington, USA). (Credit: Bill Crawford, IODP JRSO) [Photo ID: exp355_132]