Cosmology: Cosmic Microwave Background Radiation, Inflation, Formation and Evolution of Galaxies and their nuclear black holes, Reionization in the Early Universe, First Stars and Galaxies, Gravitational Lensing, 21 cm Radiation in the Early Universe, Cosmological parameters, Dark Matter and Dark Energy.

Faculty:
Douglas Finkbeiner, Lars Hernquist, Avi Loeb, Ramesh Narayan, Christopher Stubbs, Matias Zaldarriaga

High Energy Astrophysics: Accretion disks around Compact objects, Stellar Mass Blackholes, Supermassive Blackholes, Gamma Ray Bursts, Radiative Transfer around Compact Objects

Faculty:
Rosanne Di Stefano, Avi Loeb, Ramesh Narayan, George Rybicki,

Planetary Astronomy: Extra-solar Planets, Proto-Planetary Disks, Kuiper Belt Objects, Outer Solar System, Planet Formation, Gravitational Dynamics

Faculty:
Matthew Holman, Myron Lecar, Dimitar Sasselov

Stars: Stellar Atmospheres, Stellar Oscillations, Interactions between Stars and Proto-Planetary Disks

Faculty:
Dimitar Sasselov, George Rybicki,

Gravity: Tests of Gravity, Equivalence Principle

Faculty:
Irwin Shapiro, Christopher Stubbs