Gabe Grell, Ph.D., is a self-described geek. He is a NASA Postdoctoral Fellow focused on high-energy astrophysics, which involves observing some of the most powerful objects in the universe, including massive stars (10 to 20 times bigger than our sun), black holes, galaxies and supernovae, all of which emit very strong radiation in the form of X-rays. Grell analyzed the data received from satellites measuring these X-rays to deduce the atomic makeup and physical properties of those objects. Grell says he has always a math and science geek and began taking an interest in astronomy in high school. He majored in astrophysics and physics at Harvard University, then pursued his Ph.D. at the University of Maryland College Park. To learn more about the NASA Postdoctoral Fellowship Program visit https://npp.orau.org/index.html.
