The objectives can be subdivided into five
scientific categories. Titan, at the upper right, is the target
for the Huygens probe, which will descend to the surface of Saturn's
largest moon, making both atmospheric and surface measurements.
Titan will also be intensely studied by the Cassini orbiter during
its forty or more flybys of the satellite. Icy satellites (Saturn's
moons other than Titan) will be observed from intermediate distances
as well as from a few selected close flybys. Fully half of the
Cassini orbiter's instruments are designed to measure the particles,
magnetic field, and radio emissions within Saturn's magnetosphere,
shown at the lower right. The remaining two categories are Saturn's
intriguing rings and Saturn itself, depicted at the upper left.
Cassini's scientific studies will constitute an enormous improvement
in scientific knowledge of Saturn over the earlier Voyager and
Pioneer results. (P-46655)
