Science & Nature • Mathematics

Katherine Johnson

Katherine Johnson was an American mathematician whose calculations supported U.S.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Katherine Johnson was an American mathematician whose calculations supported U.S. aeronautics and spaceflight at NACA and NASA. Her work helped enable crewed missions such as John Glenn’s orbital flight and the Apollo Moon landings, and she became one of the best-known figures from NASA’s early human-computer era.

Early life and education

Katherine Johnson was born in White Sulphur Springs, West Virginia, in 1918. She earned a mathematics and French degree from West Virginia State College in 1937.

Career at NACA and NASA

Johnson began working for the National Advisory Committee for Aeronautics in 1953 and continued at NASA until her retirement in 1986. She performed manual calculations that helped verify flight paths, trajectories, and return windows for space missions.

Role in U.S. spaceflight

Her calculations supported key missions in the Mercury and Apollo programs, including John Glenn’s orbital flight and Apollo 11. NASA and Britannica both note that her work was important to the success of early American crewed spaceflight.

Recognition and legacy

Johnson received major honours including the Presidential Medal of Freedom and the Congressional Gold Medal. She became a widely recognized symbol of the contributions of Black women to science and engineering, especially after the publication of Hidden Figures and its film adaptation.

Key facts

Johnson worked at NACA and NASA for more than three decades.
She contributed calculations for missions including Alan Shepard’s Mercury flight and John Glenn’s orbital flight.
Her work supported the Apollo program, including the Moon missions.
She received the Presidential Medal of Freedom in 2015 and the Congressional Gold Medal in 2019.
She retired from NASA in 1986 and died in 2020 at age 101.

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Canadian context

Katherine Johnson is relevant to Canadian readers as a major figure in global space history and a widely studied example of women’s and Black participation in STEM.

Frequently asked questions

Who was Katherine Johnson?

Katherine Johnson was an American mathematician who helped calculate flight paths and trajectories for major U.S. space missions at NACA and NASA.

What was Katherine Johnson known for?

She was known for precise manual calculations that supported missions such as John Glenn’s orbit and the Apollo Moon landings.

When was Katherine Johnson born and when did she die?

She was born on August 26, 1918, and died on February 24, 2020.

Where did Katherine Johnson work?

She worked at the Langley Research Center for NACA and later NASA, where she remained until her retirement in 1986.

What awards did Katherine Johnson receive?

Among her honours were the Presidential Medal of Freedom in 2015 and the Congressional Gold Medal in 2019.

Why is Katherine Johnson significant in U.S. history?

She helped make early American human spaceflight possible and became a prominent figure in the history of women and Black professionals in STEM.

References

NASA — https://www.nasa.gov/centers-and-facilities/langley/katherine-johnson-biography/
Supports: Birth, death, education, hiring at NACA, retirement, and biographical details.
NASA Science — https://www.nasa.gov/people/katherine-johnson/
Supports: Career summary, role in space missions, awards, and legacy.
Encyclopaedia Britannica — https://www.britannica.com/biography/Katherine-Johnson
Supports: Nationality, occupation, mission contributions, and historical significance.
NASA Science — https://science.nasa.gov/earth/earth-observatory/birthplace-of-a-hidden-figure-148738/
Supports: West Virginia recognition and state observance context.
NASA — https://www.nasa.gov/learning-resources/katherine-johnson-a-lifetime-of-stem/
Supports: Retirement date, awards, and career timeline.