The O rings had already failed ... memorializing the seven astronauts lost in the Challenger disaster and the seven others who would be lost in the Columbia disaster on Feb. 1, 2003.

The blast killed all seven crew members aboard Challenger, including teacher Christa ... A NASA investigation later found that cold weather and faulty O-rings on the rocket’s booster were ...

The O-rings were expected to shift and flex accordingly ... The impact on the nation and NASA in particular of the Challenger disaster is hard to understate. Not only had it lost some of the ...

She was one of seven astronauts on the doomed flight, but McAuliffe’s name is the enduring symbol of the disaster ... Challenger explosion, Roger Boisjoly, a Thiokol engineer who “knew the O ...

The Space Shuttle Challenger disaster occurred on January 28 ... off the coast of central Florida, after an O-ring seal failed. People all over the country viewed the disaster live because ...

A new book details the errors that went into the disaster that doomed the Space ... a rubber component, the “O-ring,” critical to preventing gases escaping during liftoff.

Sunday marks the 38th anniversary of the Challenger space shuttle explosion, a disaster that killed seven people 73 seconds after launch.An O-ring failure blamed on cold weather doomed the shuttle ...

it is with deep, heartfelt sorrow. I address you here this afternoon at 11:40 a.m. This morning Space program experienced a national tragedy with the explosion of the space shuttle Challenger.