Previous Article Next Article Table of Contents Nature, Vol.579, No.7799, 341-341, 2020 DOI10.1038/d41586-020-00749-3 Export Citation Katherine Johnson (1918-2020) Obituary Shetterly ML NASA mathematician who calculated trajectories for early space flights. NASA mathematician who calculated trajectories for early space flights. Keywords:Space physics;Mathematics and computing;Society;History Please enable JavaScript to view the comments powered by Disqus.