this post was submitted on 10 Jul 2025
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[–] Tiger666@lemmy.ca 35 points 10 hours ago (1 children)

Not only did they broadcast the explosion they also caused it. Haha(not funny)

Richard Feynman was the one who let slip innocently what the cause was during an international press conference and made a lot of people in Washington very very mad.

Basically, the Whitehouse pushed NASA to launch despite the weather being too cold and that caused an expansion joint of an SRB to fail.

Feynman showed the world what happens to the expansion joint material by putting it in some ice water for five minutes during the press conference and showed it crumbled after he took it out of the glass.

That man was an international treasure and I miss him very much.

[–] vivalapivo@lemmy.today -1 points 10 hours ago (1 children)

I just wish that book was never written and I hope that the majority of it is a lie

[–] mukt@lemmy.ml 1 points 8 hours ago (1 children)
[–] vivalapivo@lemmy.today 2 points 8 hours ago

Surely You're Joking, Mr. Feynman!

[–] benjaminb@discuss.tchncs.de 2 points 12 hours ago (2 children)

Americans Bein the First Nation dropping a nuke on another country…

[–] Bloomcole@lemmy.world 5 points 11 hours ago
[–] Reddfugee42@lemmy.world -1 points 10 hours ago (1 children)

We almost went to whole thread without someone mentioning that. Thank you for your service

[–] Sandouq_Dyatha@lemmy.ml 2 points 9 hours ago

"stop making me feeling bad about us nuking 2 cities"

[–] Bluewing@lemmy.world 1 points 11 hours ago (2 children)

Turns out risky business has risks.

The interesting thing isn't how many fatalities NASA has had but rather how few they have had. Exploration has always gotten people killed.

[–] Reddfugee42@lemmy.world 15 points 10 hours ago

I feel you don't know what you're talking about in this situation. It is well documented that if NASA had followed their own safety guidelines and listen to their own people, this would not have happened. So many people were waiting to watch the launch that NASA leadership felt they couldn't abort. That is the sole reason this tragedy occurred, not "whoopsie daisy that sucks but we learned something" science.

[–] Nangijala@feddit.dk 11 points 11 hours ago (1 children)

The issue was that they knew there were issues with the shuttle and had been warned by several engineers about launching in the cold weather they were having at the time, but NASA ignored them and sent the Challenger on its way anyways. It's been awhile so I forget the details of exactly what it was that was wrong, but I think it ~~was the metal in some screws~~ that wasn't able to deal with the differences in temperatures and the engineers said shit would go wrong if they didn't replace them and nobody listened. It was a very preventable disaster that only happened due to laziness and impatience on NASA's part.

  • it was the rubber in the O-ring seals that couldn't handle the differences in temperature.
[–] Bluewing@lemmy.world 3 points 11 hours ago (1 children)

That more of a problem with the manufacturer, (Morton Thyiokol) telling NASA the o-rings were fine to fly coupled with NASA's desire to prove the shuttle could fly in that low temp condition.

[–] Nangijala@feddit.dk 1 points 7 hours ago* (last edited 7 hours ago)

From Wikipedia:

Cecil Houston, the manager of the KSC office of the Marshall Space Flight Center in Alabama, set up a three-way conference call with Morton Thiokol in Utah and the KSC in Florida on the evening of January 27 to discuss the safety of the launch.

Morton Thiokol engineers expressed their concerns about the effect of low temperatures on the resilience of the rubber O-rings. As the colder temperatures lowered the elasticity of the rubber O-rings, the engineers feared that the O-rings would not be extruded to form a seal at the time of launch. The engineers argued that they did not have enough data to determine whether the O-rings would seal at temperatures colder than 53 °F (12 °C), the coldest launch of the Space Shuttle to date.  During this discussion, Lawrence Mulloy, the NASA SRB project manager, said that he did not accept the analysis behind this decision, and demanded to know if Morton Thiokol expected him to wait until April for warmer temperatures.  Morton Thiokol employees Robert Lund, the Vice President of Engineering, and Joe Kilminster, the Vice President of the Space Booster Programs, recommended against launching until the temperature was above 53 °F (12 °C).

When the teleconference prepared to hold a recess to allow for private discussion amongst Morton Thiokol management, Allan J. McDonald, Morton Thiokol's Director of the Space Shuttle SRM Project who was sitting at the KSC end of the call,  reminded his colleagues in Utah to examine the interaction between delays in the primary O-rings sealing relative to the ability of the secondary O-rings to provide redundant backup, believing this would add enough to the engineering analysis to get Mulloy to stop accusing the engineers of using inconclusive evidence to try and delay the launch.  When the call resumed, Morton Thiokol leadership had changed their opinion and stated that the evidence presented on the failure of the O-rings was inconclusive and that there was a substantial margin in the event of a failure or erosion. They stated that their decision was to proceed with the launch.

When McDonald told Mulloy that, as the onsite representative at KSC he would not sign off on the decision, Mulloy demanded that Morton Thiokol provide a signed recommendation to launch; Kilminster confirmed that he would sign it and fax it from Utah immediately, and the teleconference ended.  Mulloy called Arnold Aldrich, the NASA Mission Management Team Leader, to discuss the launch decision and weather concerns, but did not mention the O-ring discussion; the two agreed to proceed with the launch.

Dunno about you, but it sounds a lot like NASA, especially Lawrence Mulloy, practically twisted Morton Thiokol's arms until one of them (Joe Kilminster) relented and signed off on the launch. Mulloy even lied by omission at the end there to get his way. I wonder how he could sleep at night after this stunt.

[–] vala@lemmy.world 11 points 1 day ago (2 children)

This legitimately almost ruined NASA.

[–] Bloomcole@lemmy.world 2 points 11 hours ago

Can't be 'ruined' in the sense that they were important for military purposes before they created the ridiculous space force.
Even Boeing, a private company that with all their failures and criminal behavior should definitely be bankrupt, gets massive help bcs they're a military contractor.

Imagine a space organization almost be>ng ruined by one explosion! NASA is obviously too weak to handle space.

[–] LovableSidekick@lemmy.world 8 points 1 day ago* (last edited 1 day ago)

By then shuttle flights were so routine I didn't even get up to watch the liftoff. My mom called me before work and told me it blew up.

Christa McAuliffe trivia: she was the only one in her training group who didn't throw up on the "Vomit Comet".

[–] Undisputedscoop@discuss.online 4 points 1 day ago (1 children)

And thats why we call it the gulf of america

[–] captain_aggravated@sh.itjust.works 4 points 11 hours ago (1 children)
[–] Cerothen@lemmy.ca 3 points 11 hours ago

Whoa there, if your not careful they will start calling it the American ocean

[–] RizzRustbolt@lemmy.world 32 points 1 day ago

My nextdoor neighbor was in her class at the time. His thousand-yard stare when he got home that day was quite haunting.

[–] zod000@lemmy.ml 130 points 2 days ago (14 children)

We watched it live in elementary school, most of the kids didn't get what had happened right away. Our teacher was just standing there stunned until an announcement came on the intercom asking all the teachers to turn it off. They didn't say anything to us, just tried to pretend like we didn't just watch people blow up live.

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