Junjie "JJ" Dong

B.S., University of Michigan, 2017

Ph.D., Harvard University, 2023

Stanback/3CPE Postdoctoral Fellow, Caltech, 2023–2026

Faculty member at Stony Brook University as of Fall 2026

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My research seeks to understand the large-scale structure and long-term evolution of Earth and other planets by investigating how their constituent materials behave at the atomic level.

We integrate laboratory experiments with computer simulations and use a variety of tools, including multi-anvil presses, diamond anvil cells, molecular dynamics simulations, thermodynamic modeling, and machine learning. These methods allow us to connect the physics and chemistry of planetary materials to geophysical, geochemical, and astronomical observations.

Current areas of interest in my group include:

1. Phase transitions under extreme pressure and temperature conditions
2. The role of water in the evolution and habitability of terrestrial planets

The structure and evolution of giant planets and exoplanets

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Please see my website for updates on current research and my Google Scholar page for a list of publications.