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About
David Kappel is a planetary scientist whose work centers on the remote sensing of comets and asteroids, with a particular focus on the composition and thermal properties of their surfaces. He is best known for his contributions to the VIRTIS imaging spectrometer aboard ESA’s Rosetta mission, where he helped unlock the secrets of comet 67P/Churyumov-Gerasimenko. His research combines hyperspectral imaging, radiative transfer modeling, and thermal inertia analysis to map the mineralogy, ices, and organic materials on these primitive bodies. Kappel’s most cited paper, “VIRTIS on Rosetta: a unique technique to observe comet 67P/Churyumov-Gerasimenko – first results and prospects” (2015, 6 citations), details the instrument’s three-channel design and its groundbreaking observations of the nucleus and coma. Beyond Rosetta, he has applied similar techniques to data from the Dawn mission at Vesta and Ceres, and to ground-based observations of near-Earth asteroids. His work has been instrumental in demonstrating how compact imaging spectrometers can yield rich compositional maps, influencing the design of future planetary missions. Kappel’s studies continue to shape our understanding of the early solar system’s building blocks.
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