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View Full Version : Remembering Ron McNair and the Challenger Crew



Fraser
2013-Jan-28, 11:40 PM
Today is the 27th anniversary of the space shuttle Challenger disaster. On January 28, 1986, mission STS-51-L ended in tragedy when a O-ring failure in one of the solid rocket boosters allowed hot combustion gases to leak from the side of the booster and burn through the external fuel tank, causing an explosion exploded 73 [...]

More... (http://www.universetoday.com/99651/remembering-ron-mcnair-and-the-challenger-crew/)