Moira K. Rankin 2000 David Barrett Wilson 2000 Exploring the Universe (series) - "Gamma Ray Skies" - 28 Jan. 2000 Exploring the Universe (series) - "Einstein's Blunder" - 23 June 2000 Exploring the Universe (series) - "The Fate of the Universe" - 28 July 2000 SOUNDPRINT Media Center, Inc.
