Abstract
With the discovery of thousands of extrasolar planetary systems it becomes more and more evident that a large variety of planetary system architectures, including very different types of planets, have been realized in nature. Our solar system is just one among many. We do not know yet whether the evolution of the planets and moons in the solar system is typical for such objects in similar environments, or not. This includes in particular the capability to develop habitable surface conditions, or even life. Planets orbiting host stars different to our Sun can experience very different environmental conditions such as stellar spectral energy distributions and harsh cosmic rays impacting the orbiting planets. The dynamical evolution of planetary systems depends on the formation processes and interactions with the protoplanetary disk as well as migration processes.
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