Meet the Expert:  Dr. Bob Williams, Astronomer Dr. Robert Williams is currently Astronomer Emeritus at Space Telescope Science Institute (STScI) in Baltimore, and the Donald Osterbrock Distinguished Professor at the University of California, Santa Cruz. From 1993-98 he served as Director of STScI, which with Goddard Space Flight Center operates Hubble Space Telescope for NASA… Continue Reading Episode 29: Can You Look Back in Time to Learn How Galaxies are Formed?