My research involves studying the formation and evolution of galaxies across much of cosmic time, from relatively nearby massive, evolved objects to infant galaxies at the current limit of the observable Universe. I discover and characterize these objects by and exploiting large imaging and spectroscopic surveys with the Hubble Space Telescope, and I am helping to develop next-generation projects with the Guranteed Time Observer, Early Release Science, and General Observer programs on the James Webb Space Telescope, launched 25 December 2022.