Astrophysics Colloquium Art and Architecture of Planetary Systems Presented by Bekki Dawson Pennsylvania State University Thursday, January 4, 2018 11:00 A.M. in 169-336 and on Webex Abstract Discoveries of exoplanets so different from those in our Solar System have called into question conventional theories for how planetary systems form and evolve. I will present recent progress in our understanding of the physical processes that drive the assembly of planetary systems and result in the surprising variety of orbital architectures we observe today. I will discuss orbital evolution in both the large and small planet regimes and physical processes that link planetary orbits to their physical properties and properties of their host stars. I will conclude by discussing predictions and investigations for upcoming and planned space missions. JPL Contact: Neal Turner (3-0049)   Site Manager: Webmaster: CL 08-3220