NANCY HORVATH, JONATHAN BIBB, & VINCENT VIDAURRI MISSION OPERATIONS LABORATORY - LABORATORY TRAINING COMPLEX (LTC), BUILDING 4663, EXPRESS RACK (ROTATING EXPRESS RACK SHELL).

Photo Date: 03/30/16 Location: JSC B5, Room 3101 Subject: Expedition 50/51 crew member Peggy Whitson during P APEX hardware and science objectives training with instructors Kathy Brown and Nancy Horvath. Photographer: Regan Geeseman