The gravitational pull of Saturn changes the amount of particles spraying from the south pole of Saturn’s active moon Enceladus at different points in its orbit. More particles make the plume appear much brighter in the infrared image at left. Credits: NASA/JPL-Caltech/University of Arizona/Cornell/SSI
During a recent stargazing session, NASA’s Cassini spacecraft watched a bright star pass behind the plume of gas and dust that spews from Saturn’s icy moon Enceladus. At first, the data from that observation had scientists scratching their heads...
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