Bob Behnken and Doug Hurley describe returning to Earth from the ISS in SpaceX's vehicle. //

During the last ever shuttle mission - STS-135 - in 2011, the crew left a US flag on the space station with the intention that the next crew to launch on a US vehicle return it to Earth. Nine years later, Hurley and Behnken have brought back the symbolic item, which also flew on the first shuttle mission in 1981.