NASA engineer Ed Smylie, who led carbon dioxide fix on Apollo 13, dies at 95
- NASA engineer Ed Smylie died on April 21, 2025, at age 95, known for leading a life-saving fix during Apollo 13's 1970 mission.
- Ed Smylie, who led NASA's crew systems team, addressed the increasing carbon dioxide levels following an explosion that damaged Apollo 13 during its mission to the moon.
- He and his team improvised a system using materials like a spacesuit hose, a sock, a plastic bag, index cards, and tape to remove carbon dioxide from the astronauts' air.
- Smylie received the Presidential Medal of Freedom and called the solution "pretty straightforward," involving about 60 people in total.
- His work ensured the crew's safe emergency return and earned him engineering honors, leaving a legacy survived by children and grandchildren.
11 Articles
11 Articles

A Lincoln County boy and Apollo 13
One of the most impressive subplots of the Tom Hanks movie “Apollo 13,” a film now 30 years old if you can believe that, was the way NASA engineers literally figured out how to fit a square peg into a round hole so that the endangered astronauts had breatheable air.
Man who saved Apollo 13 crew with hose, sock or bag has died
Ed Smylie died. NASA engineer who, with his team in 1970, figured out how to save the astronauts of the Apollo 13 mission from carbon dioxide poisoning after an explosion. Smylie died at the age of 95, almost on the day exactly 55 years after the memorial flight. The situation in the control center when the crew reported a problem on board.” It was then our fifteen minutes of glory,” Smylie declared in 1999 in an interview with a NASA historian.…
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