IODP Technicians Ty Cobb (Physical Properties Laboratory, IODP-USIO/TAMU) and Susan Boehm (X-ray Laboratory, IODP-USIO/TAMU) celebrate “Positive Peter Day” by wearing their custom-made smile masks. We instituted “Positive Peter Day” in an effort to keep spirits high during the midpoint of the cruise. (Susan Boehm/Ty Cobb & IODP) [Photo ID: exp351_105] Back to expedition photos.