I'm adding this link to the 'phenomenon' questioned in this thread, as this video doesn't have extremely loud music over the NASA commentators vocals
I have seen a very young video about some strange "spheres", like water bubble (the reflection of the light look like water bubbles) outside the ISS sometimes they look like blinking lights.
It is very hard to me to describe this phenomenon.
You will find it in the video at 4:40 minutes.
You can hear some astronauts talking about it.
I have maked a screenshot of the "sphere" hovering at the solar - collectors.
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