PHOENIX--When the shuttle Challenger blew up, the explosion lit a fuse in Roger Boisjoly's conscience. A structural engineer for Morton Thiokol Inc., the firm that later bore blame for the disaster, ...

However, when the Solid Rocket Boosters (SRBs ... Roger Boisjoly, an engineer at Morton Thiokol, which manufactured the Space Shuttle SRBs, later told a hearing into the Challenger accident ...

The Rogers Commission report of June 6, 1986, faulted both NASA as a whole and the Marshall Space Flight Center, as well as contractor Morton Thiokol ... using a Jupiter rocket in 1958, according ...