"I don't understand the purpose of Area 51. Could you tell me? Also, could you explain if Area 51 has found forms of life from other planets?"
-
Iron Isotope Record Reflects Microbial Metabolism Through Time
NAI’s University of Wisconsin team presents a review of iron isotope fingerprints created through biogeochemical cycling in the May, 2008 issue of Annual Review of Earth and Planetary Sciences. This landmark paper brings together for the first time the co-evolution records of photosynthesis, bacterial sulfate reduction, and bacterial iron reduction in the early Earth. They review data on natural systems and experiments, looking at both abiological and biological processes, and conclude that the temporal carbon, sulfur, and iron isotope record reflects the interplay of changing microbial metabolisms over Earth’s history.
- NASA Chooses MAVEN as the Next Mars Scout Mission
- NASA's Carl Sagan Fellows to Study Extraterrestrial Worlds
- Looking for Life on Mars – in a Canadian Lake
- Mars Research in Polar Bear Country
- Iron Isotope Record Reflects Microbial Metabolism Through Time
- Silicate Mineralogy on Mars Indicates Wet Past
- Jack Hills Zircons: New Information About Earth's Earliest Crust
- ASTID Funds 15 New Projects
- Liquid Water in the Martian North? Maybe.
- Astrobiology Rap