The outermost ring shown here is Saturn’s E ring, the core of which is situated about 149,000
The outermost ring shown here is Saturn’s E ring, the core of which is situated about 149,000 miles (240,000 kilometers) from Saturn. The geysers erupting from the south polar terrain of the moon Enceladus supply the fine icy particles that comprise the E ring; diffraction by sunlight gives the ring its blue color. Credit: NASA/JPL -- source link
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