Neat trick when done in space.
Actually, the cameras have no perspective, therefore, you have no indea of range or size. The “object” could be “yellow water” from the station (astronaut pee dumped overboard) or simply space junk.
Just some anecdotal background info from my memory.
The appearance and possibly even the size of these objects reminds me of several sightings in Gulf Breeze Florida during the time I was there.
These sightings were closeup, but descriptions given to media resemble what these appeared to look like at perhaps a much greater distance.
It has been speculated that they are remotely operated (drones)....