Thanks to the observation of a growing number of planetary atmospheres, we are at the dawn of a major scientific revolution in atmospheric and climate sciences. But are we ready to understand what will be discovered around other stars?

Unprecedented collection about the diversity of possible exo-atmospheres

1. In Dedication to Adam P. Showman.- 2.Preface: Understanding the Diversity of Planetary Atmosphere- 3. Setting the Stage: Planet Formation and Volatile Delivery.- 4. The Diverse Planetary Ingassing/Outgassing Paths Produced over Billions of Years of Magmatic Activity.- 5. The Diversity of Planetary Atmospheric Chemistry.- 6. Do Intrinsic Magnetic Fields Protect Planetary Atmospheres from Stellar Winds?.- 7. Did Mars Possess a Dense Atmosphere During the First ~400 Million Years?.- 8. How Well Do We Understand the Belt/Zone Circulation of Giant Planet Atmospheres?.- 9. Is the Faint Young Sun Problem for Earth Solved?.- 10.Superrotation in Planetary Atmospheres.- 11. Comparison of the Deep Atmospheric Dynamics of Jupiter and Saturn in Light of the Juno and Cassini Gravity Measurements.- 12. Atmospheric Dynamics of Hot Giant Planets and Brown Dwarfs 13. Possible Atmospheric Diversity of Low Mass Exoplanets - Some Central Aspects.- 14. Hydrogen Dominated Atmospheres on Terrestrial Mass Planets: Evidence, Origin and Evolution.- 15. A Review of Possible Planetary Atmospheres in the TRAPPIST-1 System.- 16. Outstanding Challenges of Exoplanet Atmospheric Retrievals.- 17. Future Missions to the Giant Planets that Can Advance Atmospheric Science Objectives.