Science Missions

Lead for Civil Space missions and instruments at APL, 2018-current

Multi-Mission Project Scientist for STScI, 2016-current

Project Scientist for the James Webb Space Telescope, 2013-2016

Deputy Project Scientist for the James Webb Space Telescope, 2010-2013

PI of a WFIRST Science Investigation Team / Member of the Science Working Group, 2015-current

Member of the NASA Astrophysics Advisory committee, 2014-2018

Member of the Large Synoptic Survey Telescope (LSST) Science Advisory Committee, 2014-current

Member of the NASA Astrophysics 30-year Roadmap Team, 2013

Lead of photometric calibration on the Hubble Space Telescope WFC3 Team, 2008-2010