ESO, Santiago, Chile, 5–9 March 2018
This one-week workshop is the third edition of the Observing Planetary Systems workshop (OPS-III) held every 5 years at ESO-Chile, which aims to bring together Solar System and exoplanet scientific communities. The discovery of exoplanetary systems with a large variety of architectures can teach us about the formation and history of our own Solar System, and the deep understanding of our own environment can help us search for traces of life outside of the Solar System.