Editing Cassini–Huygens (section)

=== Radio occultations of Saturn's rings ===
In May 2005, ''Cassini'' began a series of [[radio occultation]] experiments, to measure the size-distribution of particles in [[Saturn's rings]], and measure the atmosphere of Saturn itself. For over four months, the craft completed orbits designed for this purpose. During these experiments, it flew behind the ring plane of Saturn, as seen from Earth, and transmitted radio waves through the particles. The radio signals received on Earth were analyzed, for frequency, phase, and power shift of the signal to determine the structure of the rings.

{{wide image|Saturn's rings in visible light and radio.jpg|1800px|Upper image: visible color mosaic of Saturn's rings taken on December 12, 2004. Lower image: simulated view constructed from a [[radio occultation]] observation on May 3, 2005. Color in the lower image represents ring particle sizes.}}
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File:Saturn's rings in visible light and radio.jpg|Upper image: visible color mosaic of Saturn's rings taken on December 12, 2004. Lower image: simulated view constructed from a [[radio occultation]] observation on May 3, 2005. Color in the lower image represents ring particle sizes.
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