Fall 2025 PTYS Graduates

Fall 2025 PTYS Graduates

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Galen Bergsten with advisor Ilaria Pascucci at Final Defense

Galen Bergsten
June 2, 2025

Modeling Exoplanet Demographics Across Detection Methods

Advisor: Ilaria Pascucci

New position: Exoplanet Science Fellow, 
Space Telescope Science Institute


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Samuel Myers with advisor Ellen Howell final defense

Samuel Myers
June 26, 2025

Understanding the Limits of Simple Thermal Models for Characterizing Near-Earth Asteroids

Advisor: Ellen Howell 

New position: Science and Technology Policy Fellow
California Council on Science and Technology


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Samantha Moruzzi and advisor Jeff Andrews-Hanna final defense

Samantha Moruzzi
August 5, 2025

Geophysical Evolution of Sputnik Basin on Pluto

Advisor: Jeff Andrews-Hanna

New position: Postdoctoral Research Associate, 
University of Arizona, LPL


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Nathan Hadland and advisors Christopher Hamilton and Solange Duhamel

Nathan Hadland
December 8, 2025

Evaluating the Habitability of Basaltic Volcanic Environments in Iceland as an Analog for Potential Life on Mars

Advisor: Christopher Hamilton and Solange Duhamel

New position: Research Program Coordinator, 
Arizona Astrobiology Center