Robert SheldonRobert Sheldon received an MA in religion from Westminster Seminary and a PhD in physics from the University of Maryland, and has taught at Universitat Bern, Boston University, UA Huntsville, and Wheaton College. He has provided NASA and ESA with sevral space instruments and discoveries. He has published over fifty peer-reviewed papers on magnetism, comets, and nuclear propulsion, and four books: Laser Satellite Communication and the trilogy The Long Ascent. Read More Read Less