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The APOD site at NASA, AKA the Astronomy Picture of the Day page, recently posted this 3D image of Helene, one of the Trojan Moons of Saturn. And yes, you will need to break out your red/blue glasses to see it properly. Helene is a tiny little thing measuring only 36 by 32 by 30 kilometers, not even big enough to have gravity crush it round. This stereo picture was built from a few shots taken by the Cassinni orbiter back in 2011, but only recently composited together. The APOD collection is definitely my favorite source of quality wallpaper for my computer desktop and tablet screens, they have some amazing stuff there.

APOD comet image Helene