National Optical Astronomy Observatory Cerro Tololo  |  NOAO Gemini Science Center  |  Kitt Peak GSMT  |  LSST  |  Data Products  |  Major Instrumentation  |  O/IR System Flashes from the Past: Echoes from Ancient Supernovae |   A team led by astronomers from CTIO has found faint visible echoes of three ancient supernovae by detecting their centuries-old light as it is reflected by clouds of interstellar dust hundreds of light-years removed from the original explosions. The oldest one is likely to have occurred more than six hundred years ago. NOAO Press Release 05-12 Credit: P. Marenfeld and NOAO/AURA/NSF About NOAO Tourist Information In the News Educational Resources Outreach Programs Image Gallery Observing Information NOAO Science Archive Software Staff & Research Newsletter & Reports Meetings & Colloquia Employment Opportunities   NOAO Newsletter December 2005 No. 84 Probing the Dark Universe with Subaru and