Hosted on MSN2d
40 years ago, classified Shuttle mission foreshadowed Challenger's fatal flaw
O-ring erosion on Discovery would have disastrous effects a year later It has been 40 years since NASA launched the first ...
The Scientist10mon
Challenger's Whistle-Blower: Hero And Outcast
PHOENIX--When the shuttle Challenger blew up, the explosion lit a fuse in Roger Boisjoly's conscience. A structural engineer for Morton Thiokol Inc., the firm that later bore blame for the disaster, ...