Dr. Bradford’s research brings new detector and instrument technology to bear on questions of star formation, the interstellar medium, and their evolution across the cosmic history. He has led the development and fielding of new submillimeter and millimeter-wave spectrometers on mountaintop sites, using the datasets to study gas conditions in galaxies both nearby and distant. Two major recent thrusts have been the leading the definition of cryogenic far-IR astrophysics mission concepts, and the development of ultra-sensitive superconducting far-infrared detector arrays to take full advantage these low-background observatories.