Some amazing photographs of Saturn’s Tethys and Titan have been returned to Earth this month. One thing these breathtaking images of Saturn’s moons show off is the massive scale of … wait, what in the name of Cassini Solstice is that?!

On January 2, the Cassini spacecraft snapped a photograph of Titan just when a strange looking object moved into view. The object has not been identified as of yet.

“This image has not been validated or calibrated,” reports NASA. “A validated/calibrated image will be archived with the NASA Planetary Data System in 2013.”

View the full resolution image here. Is that a comet? A space ship?

Speaking of recent photos from NASA’s Cassini orbiter, check out this wide-angle Saturnian snapshot. That’s the moon Tethys in the foreground, helping to illustrate the sheer immensity of Saturn’s size. And measuring over 660 miles across, Tethys is no shrimp.

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