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, ...

A year later, the Space Shuttle Challenger would launch under similar conditions and be lost. Roger Boisjoly, an engineer at Morton Thiokol, which manufactured the Space Shuttle SRBs, later told a ...

This same stunning disillusionment happened on the morning of January 28, 1986, when the American public watched the Space Shuttle Challenger rise into the sky and then disappear in a cloud of ...