I was looking at the Cassini raw images taken from Apr. 26, 2017 4:45 AM to 9:09 AM, and I noticed that some of them show a lot of white specks. Sometimes the specks appear to be streaks. What are these things?
I know the spacecraft was "diving" through the gap between Saturn and its rings; are these "ring particles" (whatever those are)? If so, then why are some of them streaking and others not?
I considered perhaps they were digital noise of some kind, but that would not explain the streaks and the random appearance of al this stuff. If they are particles, why are they so well-lit? Is it ice reflecting the sun or something?