This is Part 2 of a two-part episode. In the early morning of 1st February 2003, the National Aeronautics and Space Administration’s Mission Control Centre is a hive of activity. This morning, the mission controllers will be overseeing  the deorbit, reentry and landing of the Space Shuttle Orbiter, Columbia.  Columbia is the oldest operational orbiter.  The 7 astronauts aboard the orbiter have just completed a 16 day scientific mission. . At 0815am the deorbit begins.