Katherine Coleman Goble Johnson is an African-American physicist and mathematician who made contributions to the United States' aeronautics and space programs with the early application of digital electronic computers at NASA. Known for accuracy in computerized celestial navigation, she conducted technical work at NASA that spanned decades. During this time, she calculated the trajectories, launch windows, and emergency back-up return paths for many flights from Project Mercury, including the early NASA missions of John Glenn and Alan Shepard, and the 1969 Apollo 11 flight to the Moon, through the Space Shuttle program. Her calculations were critical to the success of these missions. Johnson also performed calculations for the plans for a mission to Mars
Moon Duchin is an American mathematician who works as an associate professor at Tufts University. Her mathematical research concerns geometric topology, geometric group theory, and Teichmüller theory. For example, one of her results is that, for a broad class of locally flat surfaces, the geometry of the surface is entirely determined by the shortest length in each homotopy class of simple closed curves. She is also interested in the history of science, and is one of the core faculty members of Tufts's Science, Technology, and Society program.
Duchin went to Harvard University as an undergraduate, where she was active in queer organizing and finished a double major in mathematics and women's studies in 1998. As a graduate student in mathematics at the University of Chicago, she continued her feminist activism by teaching gender studies and pushing the university to add gender-neutral bathrooms.