News Archives Astrobiology Science News 15 August 2007 By Keith Cowing August 15, 2007 UD scientists take underwater robot on Black Sea expedition, University of Delaware Comet May Have Exploded Over North America 13,000 Years Ago, National Science Foundation Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter
