Katherine Johnson 1918 - 2020 25 February 2020

The Mathematical Association is sad to learn of the death of Katherine Johnson on February 24 at the age of 101. She was as American mathematician who played a pivotal part at NASA in the development of crewed space flight.

An article on her life was published in SYMmetryplus 68 last year and can be downloaded here.

The picture shows Katherine with the Presidential Medal of Freedom, awarded in 2015.