News Archives Astrobiology Science News 25 September 2008 By Keith Cowing September 25, 2008 On the variability of HD 170699 – a possible COROT target, astro-ph ESA White paper: Atmospheric modeling: Setting Biomarkers in context, astro-ph Gas Evolution in Protoplanetary Disks, astro-ph Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter