"Why can't humans live on Venus apart from the obvious massive amount of heat on the surface?"
Content with the tag: “archaea”
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Cycling Nitrogen
NASA-funded researchers at the University of Washington have shown that microorganisms completed large-scale steps in the their evolution by 2.5 billion years ago. This means that the major branches of microbial life were before we have any record of them. One important aspect of this evolution was the development of microbes capable of fixing nitrogen. This metabolic pathway had profound effects on the environment of Earth and the evolution of all life on our planet.
Source: [Astrobiology Magazine]
February 22, 2009 / Posted by: Aaron Gronstal
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Making Sense of Mars Methane
Research on methane at a Mexican salt flat could help reveal the source of methane that has been detected in the atmosphere of Mars. But first scientists have to decipher the unique – and seemingly contradictory – isotopic signature of the Mexican methane.
Source: [Link]
June 9, 2008 / Written by: David Tenenbaum, Astrobiology Magazine
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