Yes, we have had a D3 swimming program for several years now and starting in 2018 we will be in the Northern Athletics Collegiate Conference for a number of sports but swimming is not one of them. For swimming, I think we will still compete in the United States Collegiate Athletic Association.
Illinois Tech is an AITU school which offers BS degrees in Physics, Astrophysics, Applied Physics, and Aerospace Engineering plus MS and PhD degrees in Physics and Aerospace Engineering. If you have specific questions about the physics programs, I would be happy to answer them.