Junjie "JJ" Dong

HI THERE!

My name is JJ, and I am a mineral physicist and a 3CPE Postdoctoral Fellow (2023-2026) at Caltech. My research focuses on the material properties of planetary interiors under high-pressure and high-temperature conditions, with particular interests in water and redox evolution in the Earth's interior and their impact on early habitability, the composition and structure of giant planets and exoplanets, and phase transitions and melting in minerals.

I use a variety of research tools, including high-pressure experiments, thermodynamic modeling, first-principles simulations, and machine learning. My research objective is to integrate these techniques in order to connect planetary interiors to geophysical, geochemical, and astronomical observations. 

I received my Ph.D. in Earth and Planetary Sciences from Harvard in 2023, with a secondary field in the History of Science.

You can contact me at dong2j@caltech.edu.