Roger Mark Boisjoly was an American mechanical engineer, fluid dynamicist, and an aerodynamicist. He is best known for having raised strenuous objections to the launch of the Space Shuttle Challenger months before the loss of the spacecraft and its crew in January 1986. Boisjoly correctly predicted, based on earlier flight data, that the O-rings on the rocket boosters would fail if the shuttle launched in cold weather. Morton Thiokol's managers decided to launch the shuttle despite his warnings, leading to the catastrophic failure. He was considered a high-profile whistleblower.
Roger Boisjoly, American aerodynamicist and engineer (died 2012)
On April 25, in the year 1938, Roger Boisjoly, American aerodynamicist and engineer (died 2012). This event is recorded as a Notable Births event in the history of April 25, one of 419 recorded events on this date across all of history.
1 notable person is associated with this event, including Roger Boisjoly. Learn more below.
Key Facts
- This event took place on April 25, 1938 (AD era).
- It is categorised as a Notable Births event in recorded history.
- Referenced in 1 Wikipedia article.
- 1 notable person is recorded as involved in or associated with this event.
- Wikipedia source last updated on 28 March 2026.
On This Date in History 419
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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