Both McDonald and another Morton-Thiokol engineer, Roger Boisjoly, feared that the cold temperatures could cause the O-rings to stiffen and crack.

Roger Boisjoly, an engineer at Morton Thiokol, which manufactured the Space Shuttle SRBs, later told a hearing into the Challenger accident: "SRM 15 [STS 51-C] actually increased [our] concern because ...

Engineers at SRB manufacturer Morton Thiokol recommended against launching, but after internal discussion, management gave the go-ahead.

Patrick Longstreth's documentary "The Day That Shook Georgia" debuts on PBS on April 8, 2024. The film recounts the impact of the Thiokol munitions factory explosion on rural Woodbine.

"Away from goodness in the current data base." That's how Morton Thiokol staff engineer Roger Boisjoly, in a hearing investigating the 1986 Space Shuttle Challenger disaster, said he described the ...

"Away from goodness in the current data base." That's how Morton Thiokol staff engineer Roger Boisjoly, in a hearing investigating the 1986 Space Shuttle Challenger disaster, said he described the ...

This podcast from the Savannah Morning News investigates the 1971 Thiokol plant explosion in Georgia and the fallout for families of the victims.

It was an unusually cold morning for Cape Canaveral, Fla.—too cold, warned the engineers of NASA contractor Morton Thiokol, builder of the shuttle’s solid rocket motors.

Give some credit to the aerospace industrial giant Morton Thiokol for finally coming to its senses and, if not offering a forthright apology, showing an element of common sense by default. The ...

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.