The Challenger disaster on January 28, 1986, stemmed from a critical decision to launch despite engineers' concerns about the Solid Rocket Motor's O-ring seals failing in cold weather. Despite Thiokol engineers recommending a postponement due to the uncharacteristically low temperatures, NASA managers at Marshall Space Flight Center overruled them, citing a lack of established launch criteria for such conditions. This decision, influenced by media and political pressures, led to the O-ring failure and the tragic loss of all seven crew members. Sociologist Diane Vaughan's analysis highlights the 'normalization of deviance' as a key factor, where unsafe practices become accepted over time due to a lack of immediate negative consequences. AI
RANK_REASON The item is an analysis of a historical event, drawing on sociological concepts, rather than a new development.
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- Diane Vaughan
- Larry Mulloy
- Larry Wear
- Marshall Space Flight Center
- Morton Thiokol-Wasatch
- Solid Rocket Motor
- The Challenger Launch Decision: Risky Technology, Culture, and Deviance at NASA
- Viton O-rings
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