News Archives Astrobiology Science News 3 March 2008 By Keith Cowing March 3, 2008 Planet Formation by Concurrent Collapse, astro-ph Turbulent transport and its effect on the dead zone in protoplanetary discs, astro-ph Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter