The first atmospheric test vehicle for the X-38 prototype Crew Return Vehicle (CRV) for the International Space Station (ISS) goes through a 'captive carry' test under the wing of a B-52 aircraft at NASA's Dryden Flight Research Center. A CRV will be permanently attached to the ISS once it is fully operational so that crews can escape to Earth in emergencies. [Image Date: 1997/12] [98.08.003-006]