News Archives Astrobiology Science News 24 January 2008 By Keith Cowing January 26, 2008 Disks, young stars, and radio waves: the quest for forming planetary systems, astro-ph Outer edges of debris discs: how sharp is sharp?, astro-ph Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter