Spacetober 2023 25. Historic Figures - Katherine Johnson

Katherine Johnson, African American mathematician who calculated orbital trajectories for NASA missions.

I really wish I'd had more time to do a better job with the shadowing on her face…

Reference: https://www.nasa.gov/centers-and-facilities/langley/katherine-johnson-biography/

Drawn using a mechanical pencil with a 0.5 mm HB lead.