The following web sites have helpful information in exploring graduate school in physics and astronomy:
AIP Graduate Programs in Physics and Astronomy
http://www.gradschoolshopper.com
PhDs.org: Master’s and PhD Programs in Physics
http://graduate-school.phds.org/find/programs/physics
GradSchools.com: Physics Graduate Programs
http://www.gradschools.com/search-programs/physics
PhDs.org: Master’s and PhD Programs in Astrophysics and Astronomy
http://graduate-school.phds.org/find/programs/astronomy
GradSchools.com: Astronomy and Astrophysics Graduate Programs
http://www.gradschools.com/search-programs/astronomy-and-astrophysics
