Dr. Geoffrey Bryden is an astronomer interested in how planetary systems form and evolve. His current focus is on the relationship between planets and debris disks - the asteroidal/cometary rubble left over after planets form. Surveys of nearby stars with the Spitzer Space Telescope and the Herschel Space Observatory have revealed many new belts of orbiting material, in some cases in systems also known to have large planets. As remnants of the process of planet formation, these debris disks provide clues about how planets form. On the other hand, the dust they create can obscure any neighboring planets. In order to prepare for future high-contrast imaging of Earth-like planets, the Large Binocular Telescope Interferometer LBTI.