Possible UFO in NASA archive image

[majicbar]

Now that sounds like a very likely explanation for this. The only things I can think of that might be "floating around" would be a space pen(ink) or perhaps eyeglasses...?

Eyeglasses or sunglasses would seem to be the most likely, maybe with more study we will get some more clues. Minimal interior lighting would be used in undocking but their would be a few left on for orientation and minimal activity, maybe this will help see if there is a pattern from reflection on free floating glasses.