The Center for Astrophysical Sciences (CAS) within the Henry A. Rowland Department of Physics and Astronomy at Johns Hopkins University leads in research across the entire range of astrophysics, from cosmology to galactic structure to planets, using observational, numerical and theoretical methods. CAS astronomers, along with members of the neighboring Space Telescope Science Institute, jointly form one of the largest astrophysics communities in the United States.

CAS students may have the chance to work on one of many long-term research projects, led by members of Johns Hopkins’ Cosmology Discovery Group. Students within CAS also have the opportunity to participate in multi-institutional astrophysics programs such as:

This research overview page summarizes research interests of our faculty and research staff in the following areas of focus:

Mosaic image of galaxy M83, the “Southern Pinwheel,” captured by Hubble Space Telescope. A team led by research professor William Blair is using these data to analyze star clusters and star formation processes in nearby galaxies (


Henry A. Rowland Department of Physics & Astronomy