Imaging science Planetary meteorology; satellite geology;
ring structure and dynamics
Infrared Atmospheric composition, thermal structure
interferometry and dynamics; satellite surface composition
and thermal properties; ring composition
Radio science Atmospheric and ionospheric structure,
constituents, and dynamics at Saturn and
Titan; ring particle size
Ultraviolet Upper atmospheric composition and structure;
spectroscopy auroral processes; distribution of ions and
neutral atoms in the Saturn system
Magnetic fields Planetary magnetic field; magnetospheric
structure
Plasma particles Magnetospheric ion and electron
distribution; solar wind interaction with
Saturn; ions from satellites
Plasma waves Plasma electron densities; wave-particle
interactions; low-frequency wave emissions
Planetary radio Polarization and spectra of radio-frequency
astronomy emissions; plasma densities
Low-energy charged Distribution, composition, and flow of
particles energetic ions and electrons;
satellite-energetic particle interactions
Cosmic ray particles Distribution, composition, and flow of
high-energy trapped nuclei; energetic
electron spectra
“_Notre voyageur connaissait merveilleusement les lois de la
gravitation, et toutes les forces attractives et répulsives. Il s’en
servait si à propos, que tantôt à l’aide d’un rayon de soleil, tantôt
par la commodité d’une comète, il allait de globe en globe, lui et les
siens, comme un oiseau voltige de branche en branche._”
“_Our voyager knew marvelously the laws of gravitation, and all
attractive and repulsive forces. He used them in such a timely way that,
once with the help of a ray of sunshine, another time thanks to a
cooperative comet, he went from globe to globe, he and his kin, as a
bird flutters from branch to branch._”
VOLTAIRE—Micromégas, Histoire Philosophique, 1752.
[Illustration: NASA]