Stellar

About the Hosts

Dianna Cowern

Host of PBS' Physics Girl, Dianna was inspired by physics as a girl. Thanks to encouragement by her teachers and family, she pursued a physics degree at MIT. She subsequently explored careers in scientific research (at the Harvard-Smithsonian Center for Astrophysics), software engineering (at General Electric) and science outreach (at the Reuben H Fleet Science Center and the University of California San Diego) before committing to the Physics Girl YouTube channel full-time.

Joe Hanson

Joe Hanson, Ph.D., is a science writer, biologist, and YouTube educator. He is the creator and host of It’s Okay To Be Smart, an award-winning science education show from PBS Digital Studios that celebrates curiosity and the pleasure of finding things out. He received his Ph.D. from the University of Texas at Austin, and his science writing has been published by WIRED, Nautilus, Scientific American and Texas Monthly.

Matt O'Dowd

Host of PBS' Space Time, Matt O'Dowd spends his time studying the universe, especially really far-away things like quasars and evolving galaxies. He uses telescopes in space to do it. Matt completed his Ph.D. at NASA's Space Telescope Science Institute, followed by work at the University of Melbourne and Columbia University. He's now a professor at the City University of New York's Lehman College and an Associate at the American Museum of Natural History's Hayden Planetarium.