Saturn
and radiates about twice as much energy as it receives from the Sun. As suspected, Saturn
must have internal shells of liquid and metallic hydrogen, small amounts of helium, ammonia,
water, and perhaps a small rocky core. A magnetic field was also discovered around Saturn,
larger than the Earth's, but smaller than that of Jupiter. It is five times as weak as predicted
by theory. The axis of this magnetic field is aligned parallel to the planet's rotation axis,
contrary to thecircumstances in both Jupiter and Earth. The boundary of the magnetic field
varies due to changes in the pressure of the solar wind on the sunward side,as was found in
the case of Jupiter. The atmosphere of Saturn has weak bonds and there is a high haze,
perhaps composed of crystals of ammonia ice, above the clouds. Apparent high-speed jet
streams were also detected in the atmosphere. Confirming ground-based measurements, the
cloud-top temperatures were measured at about -200 degrees Celsius (-330 degrees
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