Forum Participants 

A first Forum of the H2020 contract of Europlanet was built on the concept of Planetary systems as a new unifying paradigm of planetary sciences gathering the solar system, giant planets systems and extrasolar planetary systems into a single class of astrophysical objects. This forum made it possible to identified six key questions for future research on Planetary systems in general:

• Origins of planetary systems;
• Causes of the diversity of their architectures;
• Causes of the diversity of the objects composing them;
• How do they work?
• What are the conditions for the emergence of habitable worlds?
• Where and how to search for life?

It then specifically examined how these generic questions could be addressed by space observations in the Solar System.

In a symmetric approach, we propose to devote the Second Forum to discussing how synergetic research between the Solar System and Exoplanet communities and their space projects could address and try to solve these same key questions for extra-solar planetary systems in the coming decades.

The objectives of this Forum are to assess:

• a set of suggestions for synergistic research studies between the two communities,
• possibly new concepts of observation programs (space-based or ground-based) that could derive from these synergies,
• themes for future ISSI workshops and/or forums,

that would be instrumental in helping to successfully address the six key questions.

The topics covered in the Forum

1)  Origins of planetary systems

2)  Causes of the diversity of their architectures

3)  Causes of the diversity of the objects composing the planetary systems

4)   Atmospheric evolution and magnetic interactions

5)  What are the conditions for the emergence of habitable worlds?

6)  Where and how to search for life?

Last Update: July 3, 2019