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.