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![Robert Criss, professor of Earth & Planetary Sciences](https://source.wustl.edu/app/uploads/2017/10/BobCriss800-300x300.jpg)
Robert E. Criss
Professor Emeritus of Earth, Environmental, and Planetary Sciences
![](https://source.wustl.edu/app/uploads/2015/12/Hoal-John.jpg)
![](https://source.wustl.edu/app/uploads/2015/12/Derek-Hoeferlin-300x300.jpg)
Derek Hoeferlin
Assistant Professor of Architecture