The first underwater robotic vehicle - or "glider" - to cross an ocean is the centerpiece of a new exhibit in the Sant Ocean Hall at the Smithsonian National Museum of Natural History. The exhibit opened on Dec. 9. The U.S. Integrated Ocean Observing System (IOOS®) glider, operated by Rutgers University, carried out the trans-Atlantic journey last year, just months before scientists applied the technology to the Deepwater Horizon BP response....