The US Navy and NASA are testing how they’ll recover astronauts once they splash down in the ocean following future missions to deep space, something a Navy crew hasn’t had to do in nearly 40 years. On Thursday, a team of Navy divers and the crew of the USS Arlington planned to practice retrieving a mock-up of the Orion space capsule from the waters at Naval Station Norfolk. From 1961 to 1975, teams of Navy ships tracked and recovered Mercury, Gemini and Apollo spacecraft after they re-entered the Earth’s atmosphere and splashed down in oceans. The Navy hasn’t been used to recover astronauts since 1975, when the USS New Orleans recovered the Apollo spacecraft.