The practice of designing, building, and testing the vehicles that carry humans and cargo beyond Earth's atmosphere, requiring a tolerance for risk that would be considered pathological in any other field. Spaceflight engineers must account for vacuum, radiation, extreme temperatures, and the fundamental hostility of the universe to human existence. They work with margins so thin that a single faulty O-ring can end a mission and lives. They then watch their creations launch, knowing that if they made a mistake, it will be very public and very final.
Spaceflight Engineering Example: "She was a spaceflight engineer who spent three years designing a valve for a rocket's fuel system. The valve worked perfectly during tests. On launch day, she watched from mission control, holding her breath for the two minutes the valve was active. It worked. She exhaled. Then she started worrying about the next valve, because that's what spaceflight engineers do—worry sequentially."
by Abzugal February 14, 2026
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