The Formation of Planets around the Sun and Other Stars

Detailed understanding of exoplanetary systems requires both measurements of their present-day, observable properties and predictive models for their formation to constrain properties not directly observable. In this talk I will discuss a project to compare in details the meteoritic evidence from the Solar System's first 10 Myr to astronomical observations of protoplanetary disks around other stars. Working with over forty experts, our goal was to trace the journey of solids (dust grains) from their genesis through protoplanetary disks to rocky planets. We compared these evolutionary stages to the latest Hubble and Spitzer Space Telescope observations of protoplanetary disks around other stars to find out how typical the Solar System's formation was.

I will also show how astronomical observations of disks and exoplanets around very low mass and high-mass stars help to expand the emerging picture of planet formation around sun-like stars. The broader baseline provides insights into the properties of planetary systems over a broad range of stellar parameters and offers exciting insights into the diversity of exoplanetary systems.