This artist's rendering shows the notable bright surface of icy Enceladus. In the foreground, an ice geyser can be seen projecting
a jet of vapor into space. Enceladus is considered by some as the source of the E ring (which can be very faintly seen along
Saturn's equatorial plane); icy geysers may be responsible for sustaining the E ring's supply of micrometer-sized particles. By
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