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"The Shuttle disintegrated 73 seconds after launch due to an o-ring failure in one of the Solid Rocket Boosters, killing the seven astronauts aboard." This is incorrect. The o-rings were NOT the cause of the Challenger's disintegration; it was a design flaw in the field joint in the SRB that NASA knew about even years before STS-1. Why everyone believes that it was simply a "malfunction" I will never understand.-- 134.71.249.134 ( talk) 02:16, 9 February 2011 (UTC) reply

Without a reliable source this is just speculation. ChiZeroOne ( talk) 02:19, 9 February 2011 (UTC) reply