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MPEG-1  |  2012-12-18  |  11.2 MB  |  320x240  |  29.97fps  |  54 seconds
Transcription: Saturn is the sixth planet from the Sun and as you can see in this side-by-side comparison, it is about ten times larger than Earth. Like Jupiter, it is composed mostly of hydrogen and helium, but it probably has a small rocky core as well. Of course, Saturn's most prominent feature is its rings. Uranus, Neptune, and Jupiter all have rings as well, but they're not nearly as visible as those of Saturn. Although the rings look continuous in these photos, they are not. They're actually composed of lots of individual particles that range in size from a few centimeters across to a few kilometers ac ...