President Ronald Reagan immediately appointed a commission to investigate and report on the circumstances that led up to the ...

Those elements — and the climate at Marshall under Lucas’ direction — came under intense scrutiny when the space shuttle orbiter Challenger ... as contractor Morton Thiokol Inc., over ...

He had already flown on the Challenger as part of STS-41-C missions before his ... Despite concerns voiced by engineers at the booster's contractor, Morton Thiokol, NASA went ahead with the launch.

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 ...

The Challenger 7 Crew included Michael J ... NASA managers had known since 1977 that contractor Morton-Thiokol’s design of the SRBs contained a potentially catastrophic flaw in the O-rings ...

Morton Thiokol management overruled the group's recommendation that the launch not take place because the joint seals could fail. After the joint seals did fail and the Challenger exploded, killing ...