Ready for another Where In The Universe Challenge? Here’s #125! Take a look and see if you can name where in the Universe this image is from. Give yourself extra points if you can name the spacecraft, telescope or instrument responsible for the image. We provide the image today, but won’t reveal the answer until tomorrow. This gives you a chance to mull over the image and provide your answer/guess in the comment section. And Please, no links or extensive explanations of what you think this is — give everyone the chance to guess.
UPDATE: Answer now posted below.
This is one of Saturn’s moons, Calypso, and the image was taken in February 2010.
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Calypso is shaped pretty strangely for a moon, and it is one of two Trojan moons of the larger moon Tethys — the other is Telesto. Calypso trails Tethys in its orbit by 60 degrees. Like Telesto, Calypso’s smooth surface does not appear to retain the record of intense cratering that most of Saturn’s other moons have.
This view looks toward the leading hemisphere of Calypso (21 kilometers, or 13 miles across).