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. Some CAS astronomers are part of a cooperative program with NASA’s Goddard Space Flight Center in Greenbelt Maryland, which provides further opportunities in high energy astronomy, infrared astronomy, and space instrumentation.

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

CAS students have an opportunity to work on one of many long-term research projects, led by members of Johns Hopkins’ Cosmology Discovery Group and to participate in multi-institutional astrophysics programs such as:

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