Planetary Sciences

Roger Fu

Roger Fu

Assistant Professor of Earth and Planetary Sciences
Arriving July 2017

Roger Fu will be joining the faculty of the Department of Earth and Planetary Sciences at Harvard University in July 2017.  His research interests include the formation and interior evolution of the Earth and other planetary bodies.  Roger's primary tool is paleomagnetism, which he complements with geodynamical modeling. 

Daniel Schrag

Daniel Schrag

Sturgis Hooper Professor of Geology; Professor of Environmental Science and Engineering; Director, Harvard Univ. Center for the Environment; Director, Science, Technology and Public Policy Program, HKS; Area Dean for Environmental Science and Engineering

Daniel P. Schrag is the Sturgis Hooper Professor of Geology at Harvard University, Professor of Environmental Science and Engineering, and Director of the Harvard University Center for the Environment.

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Museum of Comparative Zoology, Room 433F
26 Oxford St.
Cambridge, MA 02138
p: (617) 495-7676, f: (617) 496-0425
Andrew H. Knoll

Andrew H. Knoll

Fisher Professor of Natural History and Professor of Earth and Planetary Sciences

Andy Knoll is the Fisher Professor of Natural History at Harvard University. He received his B.A. in Geology from Lehigh University in 1973 and his Ph.D., also in Geology, from Harvard in 1977. Read more about Andrew H. Knoll

Harvard University Botanical Museum
26 Oxford St.
Cambridge MA 02138

Office location: Botanical Museum Room 50
p: 617-495-9306, f: 617-495-5667
Rakesh Yadav

Rakesh Yadav

Post-Doctoral Fellow

Existence of strong and large scale magnetic fields on planets and stars is one of the most fundamental problems in planetary and stellar physics. The turbulent motions of the electrically conducting fluids in planets and stars twist and churn the pervasive tiny magnetic field perturbations and give rise to much stronger and large scale magnetic fields. This process is called the Dynamo mechanism. Rakesh uses some of the worlds fastest supercomputers to simulate these physical processes and tries to understand how Dynamo works in stars and planets. The results from these complex magnetohydrodynamic simulations help us to better interpret the observations. Rakesh has extensively worked on modelling the dynamo in the Earth's core and in relatively tiny stars called M-stars (Proxima Centauri is one of them). At EPS, Rakesh is working to understand the geodynamo in greater details as well as to connect theoretical dynamo models for Jupiter with the incoming observations from the Juno space mission.

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2017 Mar 22

Taylor Perron

12:00pm to 1:00pm


Geological Museum Room 204

“The Long Reach of River Networks”

Abstract: Branching networks of rivers are among Earth’s most widespread and recognizable surface features. They have also been discovered on two other Solar System bodies: Mars and Saturn’s moon Titan. What do these striking landscape patterns tell us about the histories of different worlds? I will show how recent measurements and models have provided a new perspective on the origin and evolution of river networks. I will then shift the focus to Titan, where an exotic cocktail of materials and Read more about Taylor Perron

Li Zeng

Li Zeng

Post-Doctoral Fellow
Jacobsen Group

Dr. Li Zeng is a 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

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Earth-sized planets around Trappist-1

February 24, 2017

The discovery of Earth-sized planets around Trappist-1 has been making waves, and we’re proud to say that the interior structures of those seven newly discovered planets were calculated based on the model developed here at EPS by the Jacobsen group. Attached is the paper from Nature that cites their work; specifically, figure 2 is plotted based on the composition model developed by Professor Stein Jacobsen, Professor Dimitar Sasselov of the Center for Astrophysics, and Dr. Li Zeng, Simons Foundation postdoc. They would like to thank the entire EPS community for their support, as Read more about Earth-sized planets around Trappist-1