Monday, February 24, 2020

Mathematics

Katherine Johnson Dies at 101; Mathematician Broke Barriers at NASA - The New York Times

Katherine Johnson Dies at 101; Mathematician Broke Barriers at NASA

She was one of a group of black women mathematicians at NASA and its predecessor who were celebrated in the 2016 movie “Hidden Figures.”

Credit...NASA/Donaldson Collection, via Getty Images

They asked Katherine Johnson for the moon, and she gave it to them.

Wielding little more than a pencil, a slide rule and one of the finest mathematical minds in the country, Mrs. Johnson, whose death at 101 was announced on Monday by NASA, calculated the precise trajectories that would let Apollo 11 land on the moon in 1969 and, after Neil Armstrong’s history-making moonwalk, let it return to Earth.

A single error, she well knew, could have dire consequences for craft and crew. Her impeccable calculations had already helped plot the successful flight of Alan B. Shepard Jr., who became the first American in space when his Mercury spacecraft went aloft in 1961.

The next year, she likewise helped make it possible for John Glenn, in the Mercury vessel Friendship 7, to become the first American to orbit the Earth.

Yet throughout Mrs. Johnson’s 33 years in NASA’s Flight Research Division — the office from which the American space program sprang — and for decades afterward, almost no one knew her name.

Mrs. Johnson was one of several hundred rigorously educated, supremely capable yet largely unheralded women who, well before the modern feminist movement, worked as NASA mathematicians.

But it was not only her sex that kept her long marginalized and long unsung: Katherine Coleman Goble Johnson, a West Virginia native who began her scientific career in the age of Jim Crow, was also African-American.

In old age, Mrs. Johnson became the most celebrated of the small cadre of black women — perhaps three dozen — who at midcentury served as mathematicians for the space agency and its predecessor, the National Advisory Committee for Aeronautics.

Their story was told in the 2016 Hollywood film “Hidden Figures,” based on Margot Lee Shetterly’s nonfiction book of the same title, published that year. The movie starred Taraji P. Henson as Mrs. Johnson, the film’s central figure. It also starred Octavia Spencer and Janelle Monáe as her real-life colleagues Dorothy Vaughan and Mary Jackson.

In January 2017 “Hidden Figures” received the Screen Actors Guild Award for outstanding performance by a cast in a motion picture.

The film was nominated for three Oscars, including best picture. Though it won none, the 98½-year-old Mrs. Johnson received a sustained standing ovation when she appeared onstage with the cast at the Academy Awards ceremony that February.

A complete obituary will be published shortly.

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