Lorena A. Barba is professor of mechanical and aerospace engineering at the George Washington University in Washington, DC. She holds a PhD in aeronautics from the California Institute of Technology and BSc/PEng degrees in mechanical engineering from Universidad Técnica Federico Santa María, Chile. Her research includes computational fluid dynamics, high-performance computing, computational biophysics, and animal flight. An international leader in computational science and engineering, she is also a long-standing advocate of open source software for science and education. She was a member of National Academies study committee in Reproducibility and Replicability in Science, and is SC19 Reproducibility Chair.