He was a member of the Hubble Space Telescope Advanced Camera for Surveys investigation team and project scientist for the STScI Digitized Sky Survey program.
United States Geological Survey | Sky Sports | Sky News | Ordnance Survey | Sky | Coast Survey | Sky Sports News | British Geological Survey | Sloan Digital Sky Survey | Sky News Australia | Geological Survey of Canada | The Sky at Night | Sky (UK and Ireland) | Sky Living | Sky King | Lucy in the Sky with Diamonds | Explosions in the Sky | Archaeological Survey of India | survey | Reach for the Sky | Phoenix Sky Harbor International Airport | Dominion Land Survey | California Geological Survey | South Georgia Survey | Light Up the Sky | Blue Sky Studios | Big Sky, Montana | U.S. National Geodetic Survey | SKY México | Sky Captain and the World of Tomorrow |