Dianna Cowern is a science communicator and educator. She is the primary content creator for her YouTube channel, Physics Girl with PBS Digital Studios. Dianna received her BS in physics from MIT before researching low-metallicity stars at the Harvard CfA and designing an iPad app as a software engineer at GE. She then pursued her career in STEM outreach working as an educator at the Reuben H Fleet Science Center and as a physics outreach coordinator at UCSD. Her work on Physics Girl has been featured on the Huffington Post, Slate Magazine, and Scientific American blogs.