... Dr. Larry Bradley is an astrophysicist and software engineer at the Space Telescope Science Institute . His research interests are in the field of observational extragalactic astronomy, focusing on the formation and evolution of galaxies in the very early universe. He primarily uses the Hubble and Spitzer Space Telescopes to find and study high-redshift Lyman-break galaxies, including those gravitationally lensed by massive galaxy clusters. ... Copyright 2000-2016 Larry Bradley. ...