NASA's new B-52H mother ship at the ready, with renowned NASA B-52B 008 poised beside.

A newly constructed pylon (green) for carrying aerospace vehicles aloft flies attached to the wing of NASA Dryden Flight Research Center's B-52H aircraft.

Ready to go, NASA's new B-52H mother ship waits as NASA B-52B 008 taxis back from flight.

NASA's new B-52H is seen here on the ramp at the Dryden Flight Research Center, Edwards, California.

NASA's new B-52H is seen here on the ramp at the Dryden Flight Research Center, Edwards, California.

NASA Dryden's B-52H in flight

NASA Dryden's B-52H in flight.

B-52H over Dryden Flight Research Center

B-52H over Dryden Flight Research Center

A B-52H, tail number 61-0025, arrives at NASA's Dryden Flight Research Center after landing July 30, 2001.

A B-52H, on loan to NASA's Dryden Flight Research Center, makes a pass down the runway prior to landing at Edwards Air Force Base, California.

NASA's veteran silver B-52B, foreground, joined the new B-52H in NASA markings for a ceremony in Wichita, Kansas, April 12, 2002, marking the 50th anniversary of the B-52 aircraft

A newly arrived B-52H is seen here alongside NASA Dryden's venerable B-52 "B" model during its arrival ceremony on August 1, 2001.

NASA's new white B-52H, shared ramp space with the veteran NASA B-52B mother ship in Wichita, Kansas, April 12, 2002 during the 50th anniversary of the B-52 aircraft.

NASA's new white B-52H, destined to join a veteran B-52B mother ship at NASA's Dryden Flight Research Center, was exhibited at the Boeing plant in Wichita, Kansas, April 12, 2002 during the 50th anniversary commemoration of the B-52 series of aircraft.

A B-52 "H" model, on loan to NASA Dryden from the U.S. Air Force, touches down at Edwards Air Force Base, California, July 30, 2001.