Andrews' research is focused on star and planet formation, with particular emphasis on making astronomical measurements related to the structure and evolution of protoplanetary disks around young stars. The physical conditions and material characteristics of these gas and dust reservoirs play fundamental roles in the formation and early evolution of all planetary systems, including our Solar System. To investigate the properties of these disks, he conducts observations with (sub)mm/radio-wavelength interferometers and analyzes the data with radiative transfer modeling tools. More details are available on his personal webpage and on the CfA disk group page.