Deborah B. Haarsma is a professor of Physics and Astronomy at Calvin College in Grand Rapids, Michigan, where she has been on the faculty since 1999. She earned a Ph.D. in astrophysics from the Massachusetts Institute of Technology and undergraduate degrees in physics and music from Bethel College. Deborah studies galaxies and the universe using telescopes in New Mexico, Hawaii, Chile, and earth orbit. Her work on gravitational lenses and galaxy clusters has been published in "The Astrophysical Journal" and "The Astronomical Journal." Deborah often speaks and writes on astronomy and Christian faith, equipping pastors and churches to engage science.