Andrea Henshall, a retired major in the U.S. Air Force and current MIT PhD student, has completed seven tours of combat, two years of aerial circus performance, and three higher education degrees (so far). But throughout each step of her journey, all roads seemed to point to MIT. Currently working on her doctoral degree with an MIT master’s already in her toolkit, she is quick to attribute her academic success to MIT’s open educational resources. “I kept coming back to MIT-produced open source learning,” she says. “MIT dominates in educational…