This session welcomes abstracts on the gas giant planets and Pluto systems, including their internal structures, atmospheres, magnetospheres, satellites and rings and coupling processes within those systems. Abstracts on observations from space and from the ground, modelling are also solicited. Supporting laboratory investigations and concepts for future space missions and Earth-based observations are also relevant to this session.

This session welcomes abstracts addressing the exploration of ice giants systems, including internal structure, atmosphere composition, structure, and processes, magnetospheres, satellites and rings. Potential concepts for future ice giant system exploration, instrumentation, technology developments and international cooperation are also solicited.

NASA’s Juno mission is devoted to study the origin and evolution of
Jupiter, which are the keys to understand the fundamental processes
and conditions that governed our solar system during its formation.

Orbiting around Jupiter since July 4, 2016, Juno is the first
spacecraft in a polar
orbit around this gas giant. Its scientific payload includes
instrumentation to study the interior, the atmosphere, and to perform
the first in-situ exploration of Jupiter’s polar magnetosphere and
aurorae.

An Earth-based observation campaign of Jupiter and the solar wind has
been organised to boost Juno's scientific return.

This session welcomes presentation of outcomes from the Juno
measurements, the collaborative campaign during the first two year of
Juno’s prime mission and results from studies of other giants in the
solar system.

The session will focus on data analysis and on theoretical modelling
of Jupiter’s interior structure, its intense magnetic field and
plasma circulation, the atmospheric dynamics and composition, and on
the structure and evolutions of the planet's auroras. We also welcome
discussions about comparative planetology with other giants in the
solar system.

The Cassini-Huygens mission ended with a plunge into Saturn's atmosphere in September 2017 sending back data until Cassini tumbled and vaporized in Saturn's atmosphere. Preceding the final plunge, Cassini executed 22 highly inclined Grand Finale orbits with closest approaches between the innermost rings and atmosphere. Many surprises and new discoveries were made in this previously unexplored territory, and during the final year of the mission, and many new findings are still being made in Cassini’s 13 years of incredible data.

This session will highlight new Cassini discoveries from multiple disciplines, including magnetospheric physics, outer solar system planetary and ring science, and space physics, revealed by data collected during this once-in-a-lifetime opportunity to explore Saturn in a region where no spacecraft had flown before. Topics will include new results on Saturn's gravitational and magnetic fields; Saturn's ring mass; first in-situ sampling of main ring particles, Saturn's plasma environment, upper atmosphere and exosphere; high resolution imaging, spectra and radar measurements of both Saturn and its rings. Highlights from the last year of the mission and other new findings will be presented.