Tethys and Rhea lined up

Cassini captures Tethys and Rhea aligned
Cassini captures Tethys and Rhea aligned

We start off a new year, 2015, with an interesting cosmic alignment. Here we see two of Saturn’s moons; Tethys and Rhea nicely lined up with about a quarter of each in shadow. This picture was taken by the Cassini probe’s narrow-angle camera in red light at a distance of about 1.8 million kilometers from Rhea. The lit side of the moons is the one facing away from Saturn.

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