Deb Haarsma is chair of the department of physics and astronomy at Calvin College in Grand Rapids, Mich, and Co-Director of The Ministry Theorem, a project to help ministers engage science in their congregations. She received her doctorate from the Massachusetts Institute of Technology. Haarsma studies extragalactic astronomy and cosmology. Her publications in the Astrophysical Journal and the Astronomical Journal include studies of the expansion rate of the universe, star forming galaxies in the early universe, and a survey for gravitationally lensed radio galaxies. She has received observing time on major radio and optical telescopes, including the Kitt Peak 4m optical telescope in Arizona and the 8m Gemini Telescope in Hawaii. Haarsma also speaks and writes on topics of science and Christianity and co-authored the book Origins: A Reformed Look at Creation, Design, and Evolution with her husband Loren D. Haarsma.