News Summary 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 Biologist, Explorers Club Fellow, ex-NASA Space Biologist and Payload integrator, Editor of NASAWatch.com and Astrobiology.com, Lapsed climber, Explorer, Synaesthete, Former Challenger Center board member 🖖🏻 Follow on Twitter
