Megan E. Donahue is an astrophysicist, astronomer, and university teacher. She is a Professor in the Department of Physics and Astronomy at Michigan State University (MSU), East Lansing, Michigan. Her current research is mainly about using X-ray, UV, infrared, and visible light to study clusters of galaxies: their contents—dark matter, hot gas, galaxies, active galactic nuclei—and what they reveal about the contents of the universe and how galaxies form and evolve. She grew up on a farm in Nebraska and received an S.B. in Physics from Massachusetts Institute of Technology, Cambridge, Massachusetts, where she began her research career as an X-ray astronomer. She earned a Ph.D. in Astrophysics from the University of Colorado in 1990. She continued postdoctoral research as a Carnegie Fellow at Carnegie Observatories in Pasadena, California. Megan was a staff astronomer at the Space Telescope Science Institute until 2003, when she joined the MSU faculty. Megan is married to Mark Voit and they collaborate on many projects. Source: [About the Author](https://www.amazon.com/Perspective-MasteringAstronomy-Package-Bennett-Science/dp/0321839501/ref=sr_1_1?crid=20DU4AD1CRQSK&keywords=ISBN+9780321840950&qid=1702001556&s=books&sprefix=isbn+9780321840950%2Cstripbooks%2C241&sr=1-1)