Stephon Alexander is a theoretical physicist, cosmologist, jazz musician, STEM education advocate, public speaker, and author who straddles and integrates the two worlds of theoretical physics and jazz. Prior to becoming a professor at Brown, the university from which he earned his doctorate, he worked as a research physicist at both Imperial College and the Stanford Linear Accelerator Center. As a saxophonist, he has been mentored by Ornette Coleman and Will Calhoun.