News Archives Astrobiology Science News 28 April 2008 By Keith Cowing April 28, 2008 Mars Photos Appear to Show Dry Hot Springs Warming the early Earth – CO2 reconsidered, astro-ph Keith Cowing SpaceRef co-founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber. Follow on Twitter
