1923 – 2020
Photo of Freeman Dyson at the Institute for Advanced Study, Princeton, New Jersey, 2007: Monroem
Friday, February 28, 2020
Tuesday, February 25, 2020
Katherine Johnson
1918 – 2020
"Katherine G. Johnson refused to be limited by society's expectations of her gender and race while expanding the boundaries of humanity's reach."
— President Barack Obama
— President Barack Obama
Photo: NASA
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