Science for the Public, October 19, 2010. Tanja Bosak, Ph.D., Assistant Professor,and Alexander Petroff, Ph.D. candidate, Department of Earth, Atmosphere and Planetary Sciences, Massachusetts Institute of Technology
Professor Tanja Bosak and Ph.D. candidate Alexander Petroff of the Bosak Lab describe a unique scientific investigation of the sedimentary record of early Earth. Their research reveals how photosynthesis and life emerged in the ancient chemical environment of this planet. Dr. Bosak and Alex Petroff describe how scientists are reconstructing the complex co-evolution of environment, photosynthesis, microbes and minerals. And they explain the substantial challenges of analyzing the ancient remnants of photosynthesis and its relationship to other natural processes billions of years ago. The joint lecture provides important details of the controversies generated by different interpretations of this ancient process.