Mission specialist Michel Tognini of France prepares to leave the cockpit of his T-38 aircraft at the Kennedy Space Center July 16 after arriving with other crewmembers to prepare for the launch of the space shuttle Columbia. [Columbia is scheduled for launch on July 20, the 30th anniversary of Apollo 11's moon landing in 1969.] Astronauts are expected to deploy the Chandra X-Ray observatory on the five-day mission.