 
        
        	The Orbiting Carbon Observatory (OCO) is currently scheduled for launch in December 2008. This NASA Earth System Science Pathfinder (ESSP) mission will make spatially resolved measurements of CO2 over the sunlit hemisphere the Earth. These measurements will be analyzed with chemical tracer transport models to retrieve CO2 sources and sinks on regional scales and quantify their variability over the seasonal cycle. This seminar will describe the mission objectives, approach, and anticipated products.
 Getting Under Europa’s Skin
                    
                    Getting Under Europa’s Skin Tracing Formation and Evolution of Outer Solar System Bodies Through Stable Isotopes and Noble Gas Abundances
                    
                    Tracing Formation and Evolution of Outer Solar System Bodies Through Stable Isotopes and Noble Gas Abundances Photosynthesis, a Planetary Revolution
                    
                    Photosynthesis, a Planetary Revolution Xenon: King of the Gases
                    
                    Xenon: King of the Gases