On Feb. 1, the space shuttle Columbia broke up in the early morning sky on its return to Earth. This week, an independent group of experts releases the results of a seven-month investigation to find out why. Join NPR's Neal Conan and his guests to review the lessons learned from the Columbia tragedy.
*NPR Science Reporter
*Chairman of Columbia Accident Investigation Board
*Retired Navy Admiral
*Member, Columbia Accident Investigation Board
*Professor of physics and applied physics at Stanford University
*Winner of the 1996 Nobel Prize in physics, with two colleagues
*Former shuttle astronaut