This is a quadruple Saturn moon transit snapped by Hubble in 2009.

The giant orange moon Titan — larger than the planet Mercury — can be seen at upper right. The white icy moons that are much closer to Saturn, hence much closer to the ring plane in this view, are, from left to right: Enceladus, Dione, and Mimas.

(Credit: NASA, ESA and the Hubble Heritage Team)

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