Sam Nasreldine

Sam Nasreldine

Graduate Research Fellows
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Year
2023

As a third-year Ph.D. student in the Applied Mathematics Program, my primary area of investigation is in astrobiology, focusing on the potential habitability of Jupiter's icy moon, Europa. In collaboration with Professor Regis Ferriere and colleagues, I am working on developing mathematical models that simulate and assess the possible conditions of Europa's potential subsurface biosphere.

These models are comprehensive, incorporating simulations of geochemistry, plume composition, cell metabolism, and ecosystem dynamics. A key component of our approach is the application of a Bayesian statistical framework, which facilitates the estimation of probabilities for alternate hypotheses. Importantly, this Bayesian approach enables us to analyze forthcoming data from the NASA Europa Clipper and ESA JUICE missions, helping us ascertain whether the evidence suggests abiotic processes or potential signs of life. This will enrich our understanding of Europa and other icy moons, informing future exploration and the search for extraterrestrial life.

As a NASA Space Grant fellow and an instructor for SkySchool at the University of Arizona, I look forward to bringing the scientific insights from my research to audiences of all ages. By leveraging public outreach, I aim to foster a broader appreciation for mathematical models, astrobiology, and space exploration with the goal of inspiring the next generation of scientists to further uncover the mysteries of the cosmos.