Isotope geochemistry and cosmochemistry; the formation and early differentiation of the terrestrial planets; the chemical evolution of Earth's crust-mantle system; Earth systems evolution and environmental geochemistry.
Daniel Green is Director of the Central Bureau for Astronomical Telegrams and he is involved in research of small bodies of the solar system — particularly comets and meteors, but also minor planets. He collects and archives/publishes data on comets from observers around the world, and these data are published in the International Comet Quarterly (the world’s largest journal devoted solely to comets, which he edits) and posted at the Cometary Science Archive on its computers at EPS. He also directs the acquisition of CCD images of comets on a nightly basis using telescopes in Tibet, and those images are analyzed, measured, and archived; searching for new comets and near-earth asteroids. He is a member of the International Astronomical Union’s 13-member Committee on Small Body Nomenclature, which approves names for comets and minor planets (including trans-Neptunian objects) and their satellites. He is a member of Harvard’s Origins program, with an interest in how observational data of comets can help in the study of their origins and in the origins of the solar system. Green obtained his Ph.D. in physics and astronomy from the University of Durham (U.K.), his thesis focusing on analysis of old astronomical data in the historical literature using modern techniques, to extend our archive of useful data by centuries.
Fatemeh Sedaghatpour has received her PhD in Space and Planetary Sciences from Arkansas Center for Space and Planetary Sciences at the University of Arkansas in 2013. She has joined Professor Stein Jacobsen’s group as a postdoctoral fellow in June 2013 and promoted to Research Associate in June 2016. Her research involves stable isotope cosmochemistry to study the early solar system, origin and evolution of planetary bodies. Her current research is focused on Mg and Ca stable isotope systems in lunar samples and meteorites samples using high precision isotopic analyses to have a better understanding of the Moon’s origin and evolution, and investigate the planetary formation processes.
Dr. Li Zeng is a former Simons Postdoctoral Fellow in the Simons Collaboration on the Origins of Life, currently working with Professor Jacobsen in the department of Earth and Planetary Sciences, Harvard University. He has his Ph.D. & M.A. in Astronomy and Astrophysics from Harvard University and his B.S. in Physics from MIT. His current research focus is on Uncovering the formation, evolution, interior structure, and chemistry of exoplanets, in particular, Earth-like planets. You can learn more about Li’s research at astrozeng.com.