The UCSC Planetary Science group studies the origin and evolution of solar system objects, from gas giant planets to icy moons to asteroids. We use spacecraft and ground-based observations, laboratory measurements, and numerical models to investigate the processes affecting planetary interiors, surfaces, atmospheres and planetary building blocks. Much of our work is also relevant to the Early Earth and exoplanets, and we form part of the Other Worlds Laboratory and the Astrobiology Initiative.