Morton Thiokol had even established an investigative team in the fall of 1985 to look into the O-ring problem. ... (SRB). But, he said, ...

Morton Thiokol recommends that Challenger not be launched until the temperature of the O-ring seals reaches 53 degrees, which was the lowest O-ring temperature of any previous flight.

Morton Thiokol Inc., which once defended its diverse operations as ”a portfolio of businesses,” plans to separate itself into two businesses in a tax-free spinoff to shareholders. The spinoff ...

As the Shuttle program got under way, Morton-Thiokol was contracted to produce the SRBs for the Space Shuttle in August of 1972, which saw McDonald among the engineers in charge of the Shuttle SRB ...

Gerald Mason, 59, who headed Morton Thiokol’s space division in Brigham City, Utah, at the time of the Challenger accident, sent a letter to employees announcing his decision to retire June 30.

While Morton Thiokol and ATK had a rapid pace production schedule for SRB segments during the Shuttle era, ... In all, Orbital ATK noted that enough SRB casings exist for 18 total motors, ...

On Jan. 27, 1986, the former engineer for shuttle contractor Morton Thiokol had joined four colleagues in trying to keep Challenger grounded. They argued for hours that the launch the next morning ...

Engineers at Morton Thiokol Inc. in Brigham City, Utah, are investigating whether freezing temperatures for 10 hours before the Jan. 28 launch caused two rubbery seals ...

On 28 January 1986, with a predicted air temperature of just 34°F at the 09:36 EST targeted launch time of STS-51L, Challenger was approved for launch by NASA and Morton Thiokol managers over ...

Morton Thiokol, the builder of the solid-rocket boosters, advised NASA that they believed the O-ring seals in the solid-rocket boosters would perform adequately in the cold.

He came forward uninvited to state that engineers at his employer, Morton Thiokol, had warned the senior executives that cold temperature might cause the O-ring seals in the rocket joints to fail.

Roger Boisjoly was a booster rocket engineer at NASA contractor Morton Thiokol in Utah in January, 1986, when he and four colleagues became embroiled in the fatal decision to launch the Space ...