Tag Archives: o-rings

R.I.P: Roger Boisjoly, 73, has died.

R.I.P: Roger Boisjoly, 73, has died.

Boisjoly was the engineer who in 1985 warned NASA about the danger of launching the shuttle in cold weather, that the solid rocket booster’s joints might not seal correctly under those conditions, thereby causing a catastrophic failure. Sadly, he was ignored, even ostracized, and on January 28, 1986, Challenger broke apart 74 seconds after launch, killing seven astronauts.