Check this out!
Sam,
If you watch a movie with frames from earlier, you see a comet into the un occluded field of view briefly. It's really cool!
WATCH THIS SOON, it gets updated regularly.
http://star.mpae.gwdg.de/mpg/c3.mpg
These swirls are where the comet has passed out of direct view but in a position so the sunlight scattering off of it is entering the aperature and giving this ghostly view.
The roughly pentagonal dark spot in the bottom swirl is a clue that it's an optical artifact.