Allan McDonald, an engineer at Morton Thiokol, bravely attempted to prevent the launch of the Space Shuttle Challenger in 1986. He raised concerns about the O-ring seals in cold weather, warning that they could fail and cause a catastrophic explosion. Despite his warnings, NASA and his own company pushed ahead with the launch. Tragically, McDonald’s fears came true when Challenger broke apart just 73 seconds after liftoff, killing all seven crew members aboard, including teacher Christa McAuliff
0:05
Allan McDonald, an engineer at Morton Thiokol, bravely attempte…
45K viewsMay 2, 2025
Facebookthescaryfact
The Truth and The Lies of The Challenger Disaster with Whistle Blower Allan McDonald.
48:06
The Truth and The Lies of The Challenger Disaster with Whistle …
7.7K viewsFeb 20, 2019
YouTubeClub Paranormal (Truth Be Told)
RIP Allan McDonald The Utah whistleblower who bravely spoke up to the commission about the space shuttle Challenger disaster, has died. He was 83. READ MORE: https://kutv.com/news/local/utah-man-warned-nasa-of-danger-to-shuttle-before-disaster-30-years-ago | KUTV 2News
2:19
RIP Allan McDonald The Utah whistleblower who bravely spoke …
13.8K viewsMar 9, 2021
FacebookKUTV 2News
Allan Mcdonald warned NASA that the Challenger Space craft was unsafe. They refused to listen to him and sent astronauts to their death. #history #historyfacts #blackhistory #historylovers #southcarolina | Deffnotant
0:12
Allan Mcdonald warned NASA that the Challenger Space craft was un…
6.9K views6 months ago
FacebookDeffnotant
Blowing the Whistle on the Space Shuttle Challenger Disaster | Trustonomy podcast: Episode 2
28:20
Blowing the Whistle on the Space Shuttle Challenger Disaster | Trust…
2.2K viewsOct 12, 2023
YouTubeOneTrust
Allan McDonald, the engineer who tried but failed to stop the launch of the Challenger space shuttle, has died. ​He faced pressure from all of the agencies surrounding the launch. We spoke to him h​ere: ​https://youtu.be/Ds6ie8IV-LI | Retro Report
0:41
Allan McDonald, the engineer who tried but failed to stop the launch …
600 viewsMar 10, 2021
FacebookRetro Report
Major Malfunction: Revisiting Challenger
20:03
Major Malfunction: Revisiting Challenger
Jun 2, 2014
NY TimesThe New York Times
9:16
The Challenger Disaster and the Fatal Decision Behind It
93 views1 month ago
YouTubeSilent Records
Challenger Accident Hearing, Day 4, House Science and Technology C…
23.2K viewsSep 15, 2022
YouTubeSpace SPAN (Space Policy and News)
9:27
The REAL Story Of The Challenger Space Shuttle Disaster
56.9K viewsJan 18, 2022
YouTubeA Day In History
9:06
Space Shuttle Challenger Disaster Live [With Real Video] | Mayday: A…
2.2M viewsNov 9, 2021
YouTubeTechno Blog
Los secretos de la tragedia del Challenger: el hombre que sabía l…
Jan 28, 2022
infobae.com
2:18
Allan J McDonald - Refused to Sign
3.7K viewsApr 19, 2010
YouTubeallanjmcdonald
4:05
Allan J McDonald - Demoted and Reinstated
8.1K viewsApr 19, 2010
YouTubeallanjmcdonald
22:23
O ERRO que EXPLODIU um ÔNIBUS ESPACIAL
1.2M viewsAug 2, 2024
YouTubeCiência Todo Dia
20:29
Space Shuttle Challenger Disaster: Ethics Case Study No. 1
393.1K viewsNov 18, 2015
YouTubeAmerican Society of Civil Engineers (ASCE)
1:38
Allan J McDonald - Three reasons not to launch the Challenger
5.8K viewsApr 19, 2010
YouTubeallanjmcdonald
Allan Nascimento Respectfully Calls Out Former Title Challenger
6 months ago
sherdog.com
1:44:46
Supplemental 6 - Allan McDonald Testimony
12.2K viewsNov 25, 2019
YouTubeThe Space Above Us
0:25
The Challenger is Alive! | Dylan McCool
44K viewsJan 24, 2025
FacebookDylan McCool
7:21
Alan McDonald Discusses Challenger Shuttle Explosion and …
5.2K viewsApr 12, 2016
YouTubeAIChE ChEnected
‘Fed up with Labor’: Nationals unveil Allan challenger for Bendigo
1 month ago
couriermailShannon Deery
Allan McDonald, engineer who refused to approve Challenger lau…
Mar 10, 2021
krdo.com
12:09
The Space Shuttle Challenger Disaster: Put It In Writing That Yo…
393 views1 month ago
YouTubeThe Yield Point
Space Shuttle Challenger Disaster: Ethics Case Study No. 1
Jul 16, 2022
byui.edu
20:26
Allan J. McDonald, Lead NASA Engineer The Day The Challenger …
1 viewsSep 29, 2020
DailymotionBarstool Sports
0:35
Why Did NASA Ignore Warnings About Challenger?
409 viewsMay 16, 2025
YouTubeTheTHERRapy
0:23
I made a McDonald’s commercial for Ryan Trahan
2 months ago
MSNManuel Boza
2:33:36
"A Major Malfunction ..." The Story Behind the 1986 NASA Space Shu…
285K viewsNov 19, 2019
YouTubeM M
1:02
I opened a Subway on the NYC subway #shorts + I made a McDon…
1 month ago
MSNManuel Boza
See more videos
Static thumbnail place holder