Pioneer reports an eleventh moon, more rings and a frigid Titan
Battered and pitted from its encounter with the rings of Saturn, the Pioneer 11 spacecraft headed into deep space last week, its mission accomplished. In its sweep past Saturn, it had provided the best look yet at the solar system's second largest planet, discovered what is probably an eleventh Saturnian moon and two more rings. It also confirmed the existence of another ring and a magnetic field, and dimmed hopes that Titan, Saturn's largest moon, might harbor some form of life.
The computer-enhanced Saturn pho tos taken by Pioneer were far...
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