Radio propagation on Saturn
Just like on Earth, where some radio waves can travel around the
horizon, radio waves on Saturn can also do that. "Cassini's radio plasma wave instrument detects the storm every time it rotates into view, which happens every 10 hours and 40 minutes, the approximate length of a Saturn day. Every few seconds the storm gives off a radio pulse lasting for about a tenth of a second, which is typical of lightning bolts and other electrical discharges. These radio waves are detected even when the storm is over the horizon as viewed from Cassini, a result of the bending of radio waves by the planet's atmosphere." Ring planet DX anyone? :-) |
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