Saturn’s rings explained
A shattered moon could have sprayed ice particles around the planet
By Alexandra Witze, 16:02 PM December 9, 2010
Saturn’s majestic rings are the remnants of a long-vanished moon that was stripped of its icy outer layer before its rocky heart plunged into the planet, a new theory proposes. The icy fragments would have encircled the solar system’s second largest planet as rings and eventually spalled off small moons of their own that are still there today, says Robin Canup, a planetary scientist at the Southwest Research Institute in Boulder, Colo.
“Not only do you end up with the current ring, but you ...
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